102251408 has 20 divisors (see below), whose sum is σ = 226414080. Its totient is φ = 43821984.

The previous prime is 102251393. The next prime is 102251411. The reversal of 102251408 is 804152201.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 456368 + ... + 456591.

It is an arithmetic number, because the mean of its divisors is an integer number (11320704).

Almost surely, 2^102251408 is an apocalyptic number.

It is an amenable number.

102251408 is an abundant number, since it is smaller than the sum of its proper divisors (124162672).

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

102251408 is an equidigital number, since it uses as much as digits as its factorization.

102251408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912974 (or 912968 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 102251408 is about 10111.9438289579. The cubic root of 102251408 is about 467.6164339614.

The spelling of 102251408 in words is "one hundred two million, two hundred fifty-one thousand, four hundred eight".