136646765 has 32 divisors (see below), whose sum is σ = 184083840. Its totient is φ = 96768000.

The previous prime is 136646761. The next prime is 136646767. The reversal of 136646765 is 567646631.

It is not a de Polignac number, because 136646765 - 2² = 136646761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136646761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340565 + ... + 340965.

It is an arithmetic number, because the mean of its divisors is an integer number (5752620).

Almost surely, 2^136646765 is an apocalyptic number.

It is an amenable number.

136646765 is a deficient number, since it is larger than the sum of its proper divisors (47437075).

136646765 is a wasteful number, since it uses less digits than its factorization.

136646765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its digits is 544320, while the sum is 44.

The square root of 136646765 is about 11689.6007202984. The cubic root of 136646765 is about 515.0702326688.

The spelling of 136646765 in words is "one hundred thirty-six million, six hundred forty-six thousand, seven hundred sixty-five".