137572138 has 16 divisors (see below), whose sum is σ = 230610240. Its totient is φ = 61007200.

The previous prime is 137572121. The next prime is 137572151. The reversal of 137572138 is 831275731.

It is a junction number, because it is equal to n+sod(n) for n = 137572097 and 137572106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75358 + ... + 77161.

It is an arithmetic number, because the mean of its divisors is an integer number (14413140).

Almost surely, 2^137572138 is an apocalyptic number.

137572138 is a deficient number, since it is larger than the sum of its proper divisors (93038102).

137572138 is a wasteful number, since it uses less digits than its factorization.

137572138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152573.

The product of its digits is 35280, while the sum is 37.

The square root of 137572138 is about 11729.1149708748. The cubic root of 137572138 is about 516.2303045210.

It can be divided in two parts, 137 and 572138, that added together give a palindrome (572275).

The spelling of 137572138 in words is "one hundred thirty-seven million, five hundred seventy-two thousand, one hundred thirty-eight".