136807452 has 36 divisors (see below), whose sum is σ = 347363016. Its totient is φ = 45398880.

The previous prime is 136807439. The next prime is 136807457. The reversal of 136807452 is 254708631.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136807457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199 + ... + 16542.

Almost surely, 2^136807452 is an apocalyptic number.

136807452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136807452 is an abundant number, since it is smaller than the sum of its proper divisors (210555564).

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

136807452 is a wasteful number, since it uses less digits than its factorization.

136807452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16978 (or 16973 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 136807452 is about 11696.4717757108. The cubic root of 136807452 is about 515.2720490569.

The spelling of 136807452 in words is "one hundred thirty-six million, eight hundred seven thousand, four hundred fifty-two".