102138604437 has 16 divisors (see below), whose sum is σ = 143584064000. Its totient is φ = 64404355824.

The previous prime is 102138604429. The next prime is 102138604457. The reversal of 102138604437 is 734406831201.

It is not a de Polignac number, because 102138604437 - 2³ = 102138604429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102138604395 and 102138604404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102138604427) 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, 1412137 + ... + 1482702.

It is an arithmetic number, because the mean of its divisors is an integer number (8974004000).

Almost surely, 2^102138604437 is an apocalyptic number.

It is an amenable number.

102138604437 is a deficient number, since it is larger than the sum of its proper divisors (41445459563).

102138604437 is a wasteful number, since it uses less digits than its factorization.

102138604437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895480.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 102138604437 in words is "one hundred two billion, one hundred thirty-eight million, six hundred four thousand, four hundred thirty-seven".