137531311 has 8 divisors (see below), whose sum is σ = 142404480. Its totient is φ = 132666912.

The previous prime is 137531299. The next prime is 137531327. The reversal of 137531311 is 113135731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137531311 - 2¹¹ = 137529263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137531341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61041 + ... + 63253.

It is an arithmetic number, because the mean of its divisors is an integer number (17800560).

Almost surely, 2^137531311 is an apocalyptic number.

137531311 is a deficient number, since it is larger than the sum of its proper divisors (4873169).

137531311 is a wasteful number, since it uses less digits than its factorization.

137531311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385.

The product of its digits is 945, while the sum is 25.

The square root of 137531311 is about 11727.3744290868. The cubic root of 137531311 is about 516.1792326004.

The spelling of 137531311 in words is "one hundred thirty-seven million, five hundred thirty-one thousand, three hundred eleven".