102645942 has 32 divisors (see below), whose sum is σ = 246969600. Its totient is φ = 27783648.

The previous prime is 102645937. The next prime is 102645953. The reversal of 102645942 is 249546201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63517 + ... + 65112.

It is an arithmetic number, because the mean of its divisors is an integer number (7717800).

Almost surely, 2^102645942 is an apocalyptic number.

102645942 is an abundant number, since it is smaller than the sum of its proper divisors (144323658).

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

102645942 is a wasteful number, since it uses less digits than its factorization.

102645942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128660.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 102645942 is about 10131.4333635473. The cubic root of 102645942 is about 468.2170900935.

The spelling of 102645942 in words is "one hundred two million, six hundred forty-five thousand, nine hundred forty-two".