10256165 has 4 divisors (see below), whose sum is σ = 12307404. Its totient is φ = 8204928.

The previous prime is 10256161. The next prime is 10256167. The reversal of 10256165 is 56165201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56165201 = 61 ⋅920741.

It can be written as a sum of positive squares in 2 ways, for example, as 5987809 + 4268356 = 2447^2 + 2066^2 .

It is a cyclic number.

It is not a de Polignac number, because 10256165 - 2² = 10256161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10256161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025612 + ... + 1025621.

It is an arithmetic number, because the mean of its divisors is an integer number (3076851).

Almost surely, 2^10256165 is an apocalyptic number.

It is an amenable number.

10256165 is a deficient number, since it is larger than the sum of its proper divisors (2051239).

10256165 is an equidigital number, since it uses as much as digits as its factorization.

10256165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051238.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 10256165 is about 3202.5247852281. The cubic root of 10256165 is about 217.2676163378.

The spelling of 10256165 in words is "ten million, two hundred fifty-six thousand, one hundred sixty-five".