136512400 has 30 divisors (see below), whose sum is σ = 327972002. Its totient is φ = 54604800.

The previous prime is 136512391. The next prime is 136512407. The reversal of 136512400 is 4215631.

It can be written as a sum of positive squares in 3 ways, for example, as 45805824 + 90706576 = 6768^2 + 9524^2 .

It is not an unprimeable number, because it can be changed into a prime (136512407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170241 + ... + 171040.

Almost surely, 2^136512400 is an apocalyptic number.

136512400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136512400 is an abundant number, since it is smaller than the sum of its proper divisors (191459602).

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

136512400 is a wasteful number, since it uses less digits than its factorization.

136512400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341299 (or 341288 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 136512400 is about 11683.8521045073. The cubic root of 136512400 is about 514.9013541541.

The spelling of 136512400 in words is "one hundred thirty-six million, five hundred twelve thousand, four hundred".