102308172 has 24 divisors (see below), whose sum is σ = 246951600. Its totient is φ = 32926656.

The previous prime is 102308111. The next prime is 102308177. The reversal of 102308172 is 271803201.

It is not an unprimeable number, because it can be changed into a prime (102308177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146647 + ... + 147342.

It is an arithmetic number, because the mean of its divisors is an integer number (10289650).

Almost surely, 2^102308172 is an apocalyptic number.

102308172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102308172 is an abundant number, since it is smaller than the sum of its proper divisors (144643428).

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

102308172 is a wasteful number, since it uses less digits than its factorization.

102308172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294025 (or 294023 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 102308172 is about 10114.7502193579. The cubic root of 102308172 is about 467.7029490502.

The spelling of 102308172 in words is "one hundred two million, three hundred eight thousand, one hundred seventy-two".