102140918 has 16 divisors (see below), whose sum is σ = 169974720. Its totient is φ = 45640200.

The previous prime is 102140869. The next prime is 102140921. The reversal of 102140918 is 819041201.

It is a congruent number.

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, 38048 + ... + 40643.

It is an arithmetic number, because the mean of its divisors is an integer number (10623420).

Almost surely, 2^102140918 is an apocalyptic number.

102140918 is a deficient number, since it is larger than the sum of its proper divisors (67833802).

102140918 is a wasteful number, since it uses less digits than its factorization.

102140918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78763.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 102140918 is about 10106.4790110107. The cubic root of 102140918 is about 467.4479421954.

The spelling of 102140918 in words is "one hundred two million, one hundred forty thousand, nine hundred eighteen".