136533725 has 24 divisors (see below), whose sum is σ = 173976960. Its totient is φ = 106254720.

The previous prime is 136533721. The next prime is 136533751. The reversal of 136533725 is 527335631.

It is a happy number.

136533725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136533725 - 2² = 136533721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136533721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143702 + ... + 144648.

It is an arithmetic number, because the mean of its divisors is an integer number (7249040).

Almost surely, 2^136533725 is an apocalyptic number.

It is an amenable number.

136533725 is a deficient number, since it is larger than the sum of its proper divisors (37443235).

136533725 is an equidigital number, since it uses as much as digits as its factorization.

136533725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1104 counting only the distinct ones).

The product of its digits is 56700, while the sum is 35.

The square root of 136533725 is about 11684.7646531712. The cubic root of 136533725 is about 514.9281641720.

The spelling of 136533725 in words is "one hundred thirty-six million, five hundred thirty-three thousand, seven hundred twenty-five".