136136531 has 8 divisors (see below), whose sum is σ = 141820800. Its totient is φ = 130533120.

The previous prime is 136136509. The next prime is 136136537. The reversal of 136136531 is 135631631.

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 136136531 - 2¹⁴ = 136120147 is a prime.

It is a super-2 number, since 2×136136531² = 37066310145427922, 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 = 136136494 and 136136503.

It is not an unprimeable number, because it can be changed into a prime (136136537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16766 + ... + 23523.

It is an arithmetic number, because the mean of its divisors is an integer number (17727600).

Almost surely, 2^136136531 is an apocalyptic number.

136136531 is a deficient number, since it is larger than the sum of its proper divisors (5684269).

136136531 is a wasteful number, since it uses less digits than its factorization.

136136531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40429.

The product of its digits is 4860, while the sum is 29.

The square root of 136136531 is about 11667.7560396162. The cubic root of 136136531 is about 514.4283486393.

The spelling of 136136531 in words is "one hundred thirty-six million, one hundred thirty-six thousand, five hundred thirty-one".