136739393 has 16 divisors (see below), whose sum is σ = 163537920. Its totient is φ = 111786576.

The previous prime is 136739389. The next prime is 136739399. The reversal of 136739393 is 393937631.

It is a cyclic number.

It is not a de Polignac number, because 136739393 - 2² = 136739389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136739399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66446 + ... + 68472.

It is an arithmetic number, because the mean of its divisors is an integer number (10221120).

Almost surely, 2^136739393 is an apocalyptic number.

It is an amenable number.

136739393 is a deficient number, since it is larger than the sum of its proper divisors (26798527).

136739393 is a wasteful number, since it uses less digits than its factorization.

136739393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476.

The product of its digits is 275562, while the sum is 44.

The square root of 136739393 is about 11693.5620321611. The cubic root of 136739393 is about 515.1865890013.

The spelling of 136739393 in words is "one hundred thirty-six million, seven hundred thirty-nine thousand, three hundred ninety-three".