136985722137 has 48 divisors (see below), whose sum is σ = 217903795200. Its totient is φ = 82237874400.

The previous prime is 136985722129. The next prime is 136985722147. The reversal of 136985722137 is 731227589631.

136985722137 is a `hidden beast` number, since 1 + 3 + 69 + 8 + 572 + 2 + 1 + 3 + 7 = 666.

It is not a de Polignac number, because 136985722137 - 2³ = 136985722129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136985722147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4456812 + ... + 4487442.

It is an arithmetic number, because the mean of its divisors is an integer number (4539662400).

Almost surely, 2^136985722137 is an apocalyptic number.

It is an amenable number.

136985722137 is a deficient number, since it is larger than the sum of its proper divisors (80918073063).

136985722137 is a wasteful number, since it uses less digits than its factorization.

136985722137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31074 (or 31071 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The spelling of 136985722137 in words is "one hundred thirty-six billion, nine hundred eighty-five million, seven hundred twenty-two thousand, one hundred thirty-seven".