137899156 has 12 divisors (see below), whose sum is σ = 241408692. Its totient is φ = 68925248.

The previous prime is 137899133. The next prime is 137899159. The reversal of 137899156 is 651998731.

It can be written as a sum of positive squares in 2 ways, for example, as 121220100 + 16679056 = 11010^2 + 4084^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137899159) 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, 14136 + ... + 21808.

It is an arithmetic number, because the mean of its divisors is an integer number (20117391).

Almost surely, 2^137899156 is an apocalyptic number.

It is an amenable number.

137899156 is a deficient number, since it is larger than the sum of its proper divisors (103509536).

137899156 is a wasteful number, since it uses less digits than its factorization.

137899156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12170 (or 12168 counting only the distinct ones).

The product of its digits is 408240, while the sum is 49.

The square root of 137899156 is about 11743.0471343685. The cubic root of 137899156 is about 516.6390186153.

The spelling of 137899156 in words is "one hundred thirty-seven million, eight hundred ninety-nine thousand, one hundred fifty-six".