102168738 has 48 divisors (see below), whose sum is σ = 266310720. Its totient is φ = 27654048.

The previous prime is 102168733. The next prime is 102168739. The reversal of 102168738 is 837861201.

It is not an unprimeable number, because it can be changed into a prime (102168733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18945 + ... + 23732.

It is an arithmetic number, because the mean of its divisors is an integer number (5548140).

Almost surely, 2^102168738 is an apocalyptic number.

102168738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

102168738 is an abundant number, since it is smaller than the sum of its proper divisors (164141982).

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

102168738 is a wasteful number, since it uses less digits than its factorization.

102168738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42711 (or 42708 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 102168738 is about 10107.8552621216. The cubic root of 102168738 is about 467.4903777558.

The spelling of 102168738 in words is "one hundred two million, one hundred sixty-eight thousand, seven hundred thirty-eight".