136641873125 has 20 divisors (see below), whose sum is σ = 170868289020. Its totient is φ = 109236288000.

The previous prime is 136641873119. The next prime is 136641873143. The reversal of 136641873125 is 521378146631.

It can be written as a sum of positive squares in 10 ways, for example, as 134291465764 + 2350407361 = 366458^2 + 48481^2 .

It is not a de Polignac number, because 136641873125 - 2²⁰ = 136640824549 is a prime.

It is a super-2 number, since 2×136641873125² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136641873125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 816629 + ... + 969621.

It is an arithmetic number, because the mean of its divisors is an integer number (8543414451).

Almost surely, 2^136641873125 is an apocalyptic number.

It is an amenable number.

136641873125 is a deficient number, since it is larger than the sum of its proper divisors (34226415895).

136641873125 is an equidigital number, since it uses as much as digits as its factorization.

136641873125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154442 (or 154427 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The spelling of 136641873125 in words is "one hundred thirty-six billion, six hundred forty-one million, eight hundred seventy-three thousand, one hundred twenty-five".