136812693924 has 45 divisors (see below), whose sum is σ = 357672812497. Its totient is φ = 45602012016.

The previous prime is 136812693911. The next prime is 136812693937. The reversal of 136812693924 is 429396218631.

The square root of 136812693924 is 369882.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (136812693911) and next prime (136812693937).

It can be written as a sum of positive squares in only one way, i.e., 134162503524 + 2650190400 = 366282^2 + 51480^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 6647602 + ... + 6668150.

Almost surely, 2^136812693924 is an apocalyptic number.

136812693924 is the 369882-nd square number.

It is an amenable number.

136812693924 is an abundant number, since it is smaller than the sum of its proper divisors (220860118573).

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

136812693924 is an frugal number, since it uses more digits than its factorization.

136812693924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41114 (or 20554 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The spelling of 136812693924 in words is "one hundred thirty-six billion, eight hundred twelve million, six hundred ninety-three thousand, nine hundred twenty-four".