136393252 has 12 divisors (see below), whose sum is σ = 241149580. Its totient is φ = 67493376.

The previous prime is 136393219. The next prime is 136393277. The reversal of 136393252 is 252393631.

It can be written as a sum of positive squares in 2 ways, for example, as 89415936 + 46977316 = 9456^2 + 6854^2 .

It is a super-2 number, since 2×136393252² = 37206238382271008, which contains 22 as substring.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175377 + ... + 176152.

Almost surely, 2^136393252 is an apocalyptic number.

It is an amenable number.

136393252 is a deficient number, since it is larger than the sum of its proper divisors (104756328).

136393252 is a wasteful number, since it uses less digits than its factorization.

136393252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351630 (or 351628 counting only the distinct ones).

The product of its digits is 29160, while the sum is 34.

The square root of 136393252 is about 11678.7521593705. The cubic root of 136393252 is about 514.7515086118.

The spelling of 136393252 in words is "one hundred thirty-six million, three hundred ninety-three thousand, two hundred fifty-two".