136820572 has 24 divisors (see below), whose sum is σ = 279465984. Its totient is φ = 57389232.

The previous prime is 136820533. The next prime is 136820599. The reversal of 136820572 is 275028631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50668 + ... + 53299.

It is an arithmetic number, because the mean of its divisors is an integer number (11644416).

Almost surely, 2^136820572 is an apocalyptic number.

It is an amenable number.

136820572 is an abundant number, since it is smaller than the sum of its proper divisors (142645412).

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

136820572 is a wasteful number, since it uses less digits than its factorization.

136820572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104025 (or 104023 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 136820572 is about 11697.0326151550. The cubic root of 136820572 is about 515.2885202678.

The spelling of 136820572 in words is "one hundred thirty-six million, eight hundred twenty thousand, five hundred seventy-two".