10502172 has 18 divisors (see below), whose sum is σ = 26547248. Its totient is φ = 3500712.

The previous prime is 10502171. The next prime is 10502179. The reversal of 10502172 is 27120501.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×10502172² = 220591233435168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10502171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145828 + ... + 145899.

Almost surely, 2^10502172 is an apocalyptic number.

10502172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10502172 is an abundant number, since it is smaller than the sum of its proper divisors (16045076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10502172 is a wasteful number, since it uses less digits than its factorization.

10502172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291737 (or 291732 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 10502172 is about 3240.7054787500. The cubic root of 10502172 is about 218.9910548670.

Adding to 10502172 its reverse (27120501), we get a palindrome (37622673).

The spelling of 10502172 in words is "ten million, five hundred two thousand, one hundred seventy-two".