137525163891 has 12 divisors (see below), whose sum is σ = 194787661272. Its totient is φ = 86290298368.

The previous prime is 137525163887. The next prime is 137525163901. The reversal of 137525163891 is 198361525731.

It is not a de Polignac number, because 137525163891 - 2² = 137525163887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (137525163851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79310070 + ... + 79311803.

It is an arithmetic number, because the mean of its divisors is an integer number (16232305106).

Almost surely, 2^137525163891 is an apocalyptic number.

137525163891 is a deficient number, since it is larger than the sum of its proper divisors (57262497381).

137525163891 is a wasteful number, since it uses less digits than its factorization.

137525163891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158621910 (or 158621893 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The spelling of 137525163891 in words is "one hundred thirty-seven billion, five hundred twenty-five million, one hundred sixty-three thousand, eight hundred ninety-one".