137534531 has 4 divisors (see below), whose sum is σ = 137580600. Its totient is φ = 137488464.

The previous prime is 137534489. The next prime is 137534591. The reversal of 137534531 is 135435731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 137534531 - 2²² = 133340227 is a prime.

It is a super-2 number, since 2×137534531² = 37831494434779922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137534591) 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 3 ways as a sum of consecutive naturals, for example, 18221 + ... + 24638.

It is an arithmetic number, because the mean of its divisors is an integer number (34395150).

Almost surely, 2^137534531 is an apocalyptic number.

137534531 is a deficient number, since it is larger than the sum of its proper divisors (46069).

137534531 is an equidigital number, since it uses as much as digits as its factorization.

137534531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46068.

The product of its digits is 18900, while the sum is 32.

The square root of 137534531 is about 11727.5117139144. The cubic root of 137534531 is about 516.1832609780.

The spelling of 137534531 in words is "one hundred thirty-seven million, five hundred thirty-four thousand, five hundred thirty-one".