136312513 has 8 divisors (see below), whose sum is σ = 142416000. Its totient is φ = 130223808.

The previous prime is 136312493. The next prime is 136312523. The reversal of 136312513 is 315213631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136312513 is a prime.

It is a super-2 number, since 2×136312513² = 37162202400750338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136312523) 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, 17913 + ... + 24361.

It is an arithmetic number, because the mean of its divisors is an integer number (17802000).

Almost surely, 2^136312513 is an apocalyptic number.

It is an amenable number.

136312513 is a deficient number, since it is larger than the sum of its proper divisors (6103487).

136312513 is an equidigital number, since it uses as much as digits as its factorization.

136312513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7391.

The product of its digits is 1620, while the sum is 25.

The square root of 136312513 is about 11675.2949855667. The cubic root of 136312513 is about 514.6499182354.

The spelling of 136312513 in words is "one hundred thirty-six million, three hundred twelve thousand, five hundred thirteen".