10256169 has 32 divisors (see below), whose sum is σ = 17648640. Its totient is φ = 5140800.

The previous prime is 10256167. The next prime is 10256173. The reversal of 10256169 is 96165201.

10256169 = 116² + 117² + ... + 318².

It is not a de Polignac number, because 10256169 - 2¹ = 10256167 is a prime.

It is a super-2 number, since 2×10256169² = 210378005113122, which contains 22 as substring.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 5934 + ... + 7464.

It is an arithmetic number, because the mean of its divisors is an integer number (551520).

Almost surely, 2^10256169 is an apocalyptic number.

It is an amenable number.

10256169 is a deficient number, since it is larger than the sum of its proper divisors (7392471).

10256169 is a wasteful number, since it uses less digits than its factorization.

10256169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 10256169 is about 3202.5254097353. The cubic root of 10256169 is about 217.2676445832.

The spelling of 10256169 in words is "ten million, two hundred fifty-six thousand, one hundred sixty-nine".