1361775 has 24 divisors (see below), whose sum is σ = 2293504. Its totient is φ = 712800.

The previous prime is 1361743. The next prime is 1361777. The reversal of 1361775 is 5771631.

It is not a de Polignac number, because 1361775 - 2⁵ = 1361743 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361777) 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 23 ways as a sum of consecutive naturals, for example, 4890 + ... + 5160.

2^1361775 is an apocalyptic number.

1361775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1361775 is a deficient number, since it is larger than the sum of its proper divisors (931729).

1361775 is a wasteful number, since it uses less digits than its factorization.

1361775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 346 counting only the distinct ones).

The product of its digits is 4410, while the sum is 30.

The square root of 1361775 is about 1166.9511557902. The cubic root of 1361775 is about 110.8413446386.

The spelling of 1361775 in words is "one million, three hundred sixty-one thousand, seven hundred seventy-five".