1290133 has 4 divisors (see below), whose sum is σ = 1389388. Its totient is φ = 1190880.

The previous prime is 1290131. The next prime is 1290143. The reversal of 1290133 is 3310921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3310921 = 19 ⋅174259.

It can be written as a sum of positive squares in 2 ways, for example, as 877969 + 412164 = 937^2 + 642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1290133 - 2¹ = 1290131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1290133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49608 + ... + 49633.

It is an arithmetic number, because the mean of its divisors is an integer number (347347).

2^1290133 is an apocalyptic number.

1290133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1290133 is a deficient number, since it is larger than the sum of its proper divisors (99255).

1290133 is an equidigital number, since it uses as much as digits as its factorization.

1290133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99254.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1290133 is about 1135.8402176363. The cubic root of 1290133 is about 108.8624643563.

The spelling of 1290133 in words is "one million, two hundred ninety thousand, one hundred thirty-three".