136385578 has 16 divisors (see below), whose sum is σ = 233997120. Its totient is φ = 58402656.

The previous prime is 136385567. The next prime is 136385593. The reversal of 136385578 is 875583631.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17478 + ... + 24046.

It is an arithmetic number, because the mean of its divisors is an integer number (14624820).

Almost surely, 2^136385578 is an apocalyptic number.

136385578 is a deficient number, since it is larger than the sum of its proper divisors (97611542).

136385578 is a wasteful number, since it uses less digits than its factorization.

136385578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8061.

The product of its digits is 604800, while the sum is 46.

The square root of 136385578 is about 11678.4236093747. The cubic root of 136385578 is about 514.7418544755.

The spelling of 136385578 in words is "one hundred thirty-six million, three hundred eighty-five thousand, five hundred seventy-eight".