136394974 has 4 divisors (see below), whose sum is σ = 204592464. Its totient is φ = 68197486.

The previous prime is 136394953. The next prime is 136395031. The reversal of 136394974 is 479493631.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34098742 + ... + 34098745.

It is an arithmetic number, because the mean of its divisors is an integer number (51148116).

Almost surely, 2^136394974 is an apocalyptic number.

136394974 is a deficient number, since it is larger than the sum of its proper divisors (68197490).

136394974 is an equidigital number, since it uses as much as digits as its factorization.

136394974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68197489.

The product of its digits is 489888, while the sum is 46.

The square root of 136394974 is about 11678.8258827675. The cubic root of 136394974 is about 514.7536748929.

The spelling of 136394974 in words is "one hundred thirty-six million, three hundred ninety-four thousand, nine hundred seventy-four".