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1797133 = 13138241
BaseRepresentation
bin110110110110000001101
310101022012111
412312300031
5430002013
6102304021
721163312
oct6666015
93338174
101797133
111018238
12728011
134abcc0
1434ad09
1525773d
hex1b6c0d

1797133 has 4 divisors (see below), whose sum is σ = 1935388. Its totient is φ = 1658880.

The previous prime is 1797109. The next prime is 1797161. The reversal of 1797133 is 3317971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3317971 = 14472293.

It can be written as a sum of positive squares in 2 ways, for example, as 191844 + 1605289 = 438^2 + 1267^2 .

It is a cyclic number.

It is not a de Polignac number, because 1797133 - 217 = 1666061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1797095 and 1797104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69108 + ... + 69133.

It is an arithmetic number, because the mean of its divisors is an integer number (483847).

21797133 is an apocalyptic number.

1797133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1797133 is a deficient number, since it is larger than the sum of its proper divisors (138255).

1797133 is a wasteful number, since it uses less digits than its factorization.

1797133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138254.

The product of its digits is 3969, while the sum is 31.

The square root of 1797133 is about 1340.5718928875. The cubic root of 1797133 is about 121.5794216173.

The spelling of 1797133 in words is "one million, seven hundred ninety-seven thousand, one hundred thirty-three".

Divisors: 1 13 138241 1797133