137133831 has 4 divisors (see below), whose sum is σ = 182845112. Its totient is φ = 91422552.

The previous prime is 137133769. The next prime is 137133833. The reversal of 137133831 is 138331731.

137133831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 137133831 - 2⁹ = 137133319 is a prime.

It is a super-2 number, since 2×137133831² = 37611375209473122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137133833) 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, 22855636 + ... + 22855641.

It is an arithmetic number, because the mean of its divisors is an integer number (45711278).

Almost surely, 2^137133831 is an apocalyptic number.

137133831 is a deficient number, since it is larger than the sum of its proper divisors (45711281).

137133831 is an equidigital number, since it uses as much as digits as its factorization.

137133831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45711280.

The product of its digits is 4536, while the sum is 30.

The square root of 137133831 is about 11710.4154922018. The cubic root of 137133831 is about 515.6814819596.

The spelling of 137133831 in words is "one hundred thirty-seven million, one hundred thirty-three thousand, eight hundred thirty-one".