137531139 has 16 divisors (see below), whose sum is σ = 204382080. Its totient is φ = 81751680.

The previous prime is 137531129. The next prime is 137531161. The reversal of 137531139 is 931135731.

It is not a de Polignac number, because 137531139 - 2⁴ = 137531123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137531129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69997 + ... + 71934.

It is an arithmetic number, because the mean of its divisors is an integer number (12773880).

Almost surely, 2^137531139 is an apocalyptic number.

137531139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

137531139 is a deficient number, since it is larger than the sum of its proper divisors (66850941).

137531139 is a wasteful number, since it uses less digits than its factorization.

137531139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141970.

The product of its digits is 8505, while the sum is 33.

The square root of 137531139 is about 11727.3670958148. The cubic root of 137531139 is about 516.1790174183.

The spelling of 137531139 in words is "one hundred thirty-seven million, five hundred thirty-one thousand, one hundred thirty-nine".