139981292236 has 12 divisors (see below), whose sum is σ = 252869431360. Its totient is φ = 67732883280.

The previous prime is 139981292233. The next prime is 139981292291. The reversal of 139981292236 is 632292189931.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (139981292233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564440571 + ... + 564440818.

Almost surely, 2^139981292236 is an apocalyptic number.

It is an amenable number.

139981292236 is a deficient number, since it is larger than the sum of its proper divisors (112888139124).

139981292236 is a wasteful number, since it uses less digits than its factorization.

139981292236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128881424 (or 1128881422 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 55.

The spelling of 139981292236 in words is "one hundred thirty-nine billion, nine hundred eighty-one million, two hundred ninety-two thousand, two hundred thirty-six".