137072836 has 12 divisors (see below), whose sum is σ = 253988028. Its totient is φ = 64504832.

The previous prime is 137072833. The next prime is 137072843. The reversal of 137072836 is 638270731.

It can be written as a sum of positive squares in 2 ways, for example, as 50694400 + 86378436 = 7120^2 + 9294^2 .

It is a junction number, because it is equal to n+sod(n) for n = 137072795 and 137072804.

It is not an unprimeable number, because it can be changed into a prime (137072833) 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, 1007821 + ... + 1007956.

It is an arithmetic number, because the mean of its divisors is an integer number (21165669).

Almost surely, 2^137072836 is an apocalyptic number.

It is an amenable number.

137072836 is a deficient number, since it is larger than the sum of its proper divisors (116915192).

137072836 is a wasteful number, since it uses less digits than its factorization.

137072836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015798 (or 2015796 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 137072836 is about 11707.8108970038. The cubic root of 137072836 is about 515.6050149144.

The spelling of 137072836 in words is "one hundred thirty-seven million, seventy-two thousand, eight hundred thirty-six".