136512131 has 8 divisors (see below), whose sum is σ = 164225280. Its totient is φ = 110851848.

The previous prime is 136512121. The next prime is 136512149. The reversal of 136512131 is 131215631.

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 136512131 - 2⁶ = 136512067 is a prime.

It is a super-2 number, since 2×136512131² = 37271123820322322, 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 = 136512097 and 136512106.

It is not an unprimeable number, because it can be changed into a prime (136512121) 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, 513071 + ... + 513336.

It is an arithmetic number, because the mean of its divisors is an integer number (20528160).

Almost surely, 2^136512131 is an apocalyptic number.

136512131 is a deficient number, since it is larger than the sum of its proper divisors (27713149).

136512131 is a wasteful number, since it uses less digits than its factorization.

136512131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026433.

The product of its digits is 540, while the sum is 23.

The square root of 136512131 is about 11683.8405928873. The cubic root of 136512131 is about 514.9010159466.

Adding to 136512131 its reverse (131215631), we get a palindrome (267727762).

The spelling of 136512131 in words is "one hundred thirty-six million, five hundred twelve thousand, one hundred thirty-one".