135713631 has 4 divisors (see below), whose sum is σ = 180951512. Its totient is φ = 90475752.

The previous prime is 135713621. The next prime is 135713647. The reversal of 135713631 is 136317531.

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

It is not a de Polignac number, because 135713631 - 2¹³ = 135705439 is a prime.

It is a super-2 number, since 2×135713631² = 36836379278408322, 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 (135713621) 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, 22618936 + ... + 22618941.

It is an arithmetic number, because the mean of its divisors is an integer number (45237878).

Almost surely, 2^135713631 is an apocalyptic number.

135713631 is a deficient number, since it is larger than the sum of its proper divisors (45237881).

135713631 is an equidigital number, since it uses as much as digits as its factorization.

135713631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45237880.

The product of its digits is 5670, while the sum is 30.

The square root of 135713631 is about 11649.6193500045. The cubic root of 135713631 is about 513.8951157954.

The spelling of 135713631 in words is "one hundred thirty-five million, seven hundred thirteen thousand, six hundred thirty-one".