135561952 has 24 divisors (see below), whose sum is σ = 269892000. Its totient is φ = 67017984.

The previous prime is 135561913. The next prime is 135561953. The reversal of 135561952 is 259165531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135561953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20952 + ... + 26647.

It is an arithmetic number, because the mean of its divisors is an integer number (11245500).

Almost surely, 2^135561952 is an apocalyptic number.

It is an amenable number.

135561952 is a deficient number, since it is larger than the sum of its proper divisors (134330048).

135561952 is an equidigital number, since it uses as much as digits as its factorization.

135561952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47698 (or 47690 counting only the distinct ones).

The product of its digits is 40500, while the sum is 37.

The square root of 135561952 is about 11643.1074889825. The cubic root of 135561952 is about 513.7035944927.

The spelling of 135561952 in words is "one hundred thirty-five million, five hundred sixty-one thousand, nine hundred fifty-two".