102394138 has 32 divisors (see below), whose sum is σ = 196172928. Its totient is φ = 38918400.

The previous prime is 102394129. The next prime is 102394139. The reversal of 102394138 is 831493201.

It is not an unprimeable number, because it can be changed into a prime (102394139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1795 + ... + 14422.

It is an arithmetic number, because the mean of its divisors is an integer number (6130404).

Almost surely, 2^102394138 is an apocalyptic number.

102394138 is a deficient number, since it is larger than the sum of its proper divisors (93778790).

102394138 is a wasteful number, since it uses less digits than its factorization.

102394138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16278.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 102394138 is about 10118.9988635240. The cubic root of 102394138 is about 467.8339105520.

The spelling of 102394138 in words is "one hundred two million, three hundred ninety-four thousand, one hundred thirty-eight".