102158408 has 32 divisors (see below), whose sum is σ = 212397120. Its totient is φ = 45672000.

The previous prime is 102158377. The next prime is 102158417. The reversal of 102158408 is 804851201.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4148 + ... + 14883.

It is an arithmetic number, because the mean of its divisors is an integer number (6637410).

Almost surely, 2^102158408 is an apocalyptic number.

It is an amenable number.

102158408 is an abundant number, since it is smaller than the sum of its proper divisors (110238712).

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

102158408 is a wasteful number, since it uses less digits than its factorization.

102158408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19109 (or 19105 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 102158408 is about 10107.3442604870. The cubic root of 102158408 is about 467.4746216694.

The spelling of 102158408 in words is "one hundred two million, one hundred fifty-eight thousand, four hundred eight".