102172996 has 6 divisors (see below), whose sum is σ = 178802750. Its totient is φ = 51086496.

The previous prime is 102172963. The next prime is 102172999. The reversal of 102172996 is 699271201.

It can be written as a sum of positive squares in only one way, i.e., 52272900 + 49900096 = 7230^2 + 7064^2 .

It is a super-2 number, since 2×102172996² = 20878642223232032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102172999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12771621 + ... + 12771628.

Almost surely, 2^102172996 is an apocalyptic number.

It is an amenable number.

102172996 is a deficient number, since it is larger than the sum of its proper divisors (76629754).

102172996 is a wasteful number, since it uses less digits than its factorization.

102172996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25543253 (or 25543251 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 102172996 is about 10108.0658881905. The cubic root of 102172996 is about 467.4968720658.

The spelling of 102172996 in words is "one hundred two million, one hundred seventy-two thousand, nine hundred ninety-six".