136504044 has 72 divisors (see below), whose sum is σ = 363832560. Its totient is φ = 43085952.

The previous prime is 136504007. The next prime is 136504061. The reversal of 136504044 is 440405631.

136504044 is a `hidden beast` number, since 1 + 3 + 650 + 4 + 0 + 4 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 136503999 and 136504017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54099 + ... + 56565.

It is an arithmetic number, because the mean of its divisors is an integer number (5053230).

Almost surely, 2^136504044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136504044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181916280).

136504044 is an abundant number, since it is smaller than the sum of its proper divisors (227328516).

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

136504044 is a wasteful number, since it uses less digits than its factorization.

136504044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2554 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 136504044 is about 11683.4945114893. The cubic root of 136504044 is about 514.8908481402.

Adding to 136504044 its reverse (440405631), we get a palindrome (576909675).

The spelling of 136504044 in words is "one hundred thirty-six million, five hundred four thousand, forty-four".