102507923 has 16 divisors (see below), whose sum is σ = 119906304. Its totient is φ = 85821120.

The previous prime is 102507919. The next prime is 102507949. The reversal of 102507923 is 329705201.

It is not a de Polignac number, because 102507923 - 2² = 102507919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102507323) 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, 58703 + ... + 60423.

It is an arithmetic number, because the mean of its divisors is an integer number (7494144).

Almost surely, 2^102507923 is an apocalyptic number.

102507923 is a deficient number, since it is larger than the sum of its proper divisors (17398381).

102507923 is a wasteful number, since it uses less digits than its factorization.

102507923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 102507923 is about 10124.6196471769. The cubic root of 102507923 is about 468.0071391392.

The spelling of 102507923 in words is "one hundred two million, five hundred seven thousand, nine hundred twenty-three".