102831974136 has 72 divisors (see below), whose sum is σ = 287777238840. Its totient is φ = 33171582240.

The previous prime is 102831974129. The next prime is 102831974149. The reversal of 102831974136 is 631479138201.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 102831974091 and 102831974100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 673900 + ... + 812283.

It is an arithmetic number, because the mean of its divisors is an integer number (3996906095).

Almost surely, 2^102831974136 is an apocalyptic number.

It is an amenable number.

102831974136 is an abundant number, since it is smaller than the sum of its proper divisors (184945264704).

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

102831974136 is a wasteful number, since it uses less digits than its factorization.

102831974136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486257 (or 1486219 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 102831974136 in words is "one hundred two billion, eight hundred thirty-one million, nine hundred seventy-four thousand, one hundred thirty-six".