136310531 has 8 divisors (see below), whose sum is σ = 157534560. Its totient is φ = 115524288.

The previous prime is 136310521. The next prime is 136310567. The reversal of 136310531 is 135013631.

It is a happy number.

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 136310531 - 2¹⁰ = 136309507 is a prime.

It is a super-2 number, since 2×136310531² = 37161121723003922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136310497 and 136310506.

It is not an unprimeable number, because it can be changed into a prime (136310501) 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, 108776 + ... + 110021.

It is an arithmetic number, because the mean of its divisors is an integer number (19691820).

Almost surely, 2^136310531 is an apocalyptic number.

136310531 is a deficient number, since it is larger than the sum of its proper divisors (21224029).

136310531 is an equidigital number, since it uses as much as digits as its factorization.

136310531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218893.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 136310531 is about 11675.2101051758. The cubic root of 136310531 is about 514.6474238665.

The spelling of 136310531 in words is "one hundred thirty-six million, three hundred ten thousand, five hundred thirty-one".