13139194532 has 12 divisors (see below), whose sum is σ = 24346154700. Its totient is φ = 6183150336.

The previous prime is 13139194513. The next prime is 13139194573. The reversal of 13139194532 is 23549193131.

It can be written as a sum of positive squares in 2 ways, for example, as 9386896996 + 3752297536 = 96886^2 + 61256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13139194532.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96611657 + ... + 96611792.

It is an arithmetic number, because the mean of its divisors is an integer number (2028846225).

Almost surely, 2^13139194532 is an apocalyptic number.

It is an amenable number.

13139194532 is a deficient number, since it is larger than the sum of its proper divisors (11206960168).

13139194532 is a wasteful number, since it uses less digits than its factorization.

13139194532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193223470 (or 193223468 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The spelling of 13139194532 in words is "thirteen billion, one hundred thirty-nine million, one hundred ninety-four thousand, five hundred thirty-two".