136561452 has 12 divisors (see below), whose sum is σ = 318643416. Its totient is φ = 45520480.

The previous prime is 136561433. The next prime is 136561457. The reversal of 136561452 is 254165631.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (136561457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5690049 + ... + 5690072.

It is an arithmetic number, because the mean of its divisors is an integer number (26553618).

Almost surely, 2^136561452 is an apocalyptic number.

136561452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136561452 is an abundant number, since it is smaller than the sum of its proper divisors (182081964).

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

136561452 is a wasteful number, since it uses less digits than its factorization.

136561452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11380128 (or 11380126 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 136561452 is about 11685.9510524390. The cubic root of 136561452 is about 514.9630186786.

The spelling of 136561452 in words is "one hundred thirty-six million, five hundred sixty-one thousand, four hundred fifty-two".