136531026 has 12 divisors (see below), whose sum is σ = 295817262. Its totient is φ = 45510336.

The previous prime is 136531019. The next prime is 136531051. The reversal of 136531026 is 620135631.

136531026 is a `hidden beast` number, since 1 + 3 + 653 + 1 + 0 + 2 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131125401 + 5405625 = 11451^2 + 2325^2 .

It is a super-2 number, since 2×136531026² = 37281442121225352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3792511 + ... + 3792546.

Almost surely, 2^136531026 is an apocalyptic number.

136531026 is an abundant number, since it is smaller than the sum of its proper divisors (159286236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136531026 is a wasteful number, since it uses less digits than its factorization.

136531026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7585065 (or 7585062 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 136531026 is about 11684.6491603300. The cubic root of 136531026 is about 514.9247711147.

Adding to 136531026 its reverse (620135631), we get a palindrome (756666657).

The spelling of 136531026 in words is "one hundred thirty-six million, five hundred thirty-one thousand, twenty-six".