136465644 has 24 divisors (see below), whose sum is σ = 363908608. Its totient is φ = 38990160.

The previous prime is 136465639. The next prime is 136465649. The reversal of 136465644 is 446564631.

It is an interprime number because it is at equal distance from previous prime (136465639) and next prime (136465649).

It is not an unprimeable number, because it can be changed into a prime (136465649) 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 7 ways as a sum of consecutive naturals, for example, 812212 + ... + 812379.

Almost surely, 2^136465644 is an apocalyptic number.

136465644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

136465644 is an abundant number, since it is smaller than the sum of its proper divisors (227442964).

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

136465644 is a wasteful number, since it uses less digits than its factorization.

136465644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624605 (or 1624603 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 136465644 is about 11681.8510519523. The cubic root of 136465644 is about 514.8425622378.

The spelling of 136465644 in words is "one hundred thirty-six million, four hundred sixty-five thousand, six hundred forty-four".