136504008 has 64 divisors (see below), whose sum is σ = 380808000. Its totient is φ = 45305856.

The previous prime is 136504007. The next prime is 136504061. The reversal of 136504008 is 800405631.

136504008 is a `hidden beast` number, since 1 + 3 + 650 + 4 + 0 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (136504001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54283 + ... + 56741.

It is an arithmetic number, because the mean of its divisors is an integer number (5950125).

Almost surely, 2^136504008 is an apocalyptic number.

136504008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136504008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190404000).

136504008 is an abundant number, since it is smaller than the sum of its proper divisors (244303992).

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

136504008 is a wasteful number, since it uses less digits than its factorization.

136504008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 136504008 is about 11683.4929708542. The cubic root of 136504008 is about 514.8908028764.

Adding to 136504008 its reverse (800405631), we get a palindrome (936909639).

The spelling of 136504008 in words is "one hundred thirty-six million, five hundred four thousand, eight".