121535652 has 48 divisors (see below), whose sum is σ = 343163520. Its totient is φ = 32681472.

The previous prime is 121535621. The next prime is 121535653. The reversal of 121535652 is 256535121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121535653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41127 + ... + 43982.

It is an arithmetic number, because the mean of its divisors is an integer number (7149240).

Almost surely, 2^121535652 is an apocalyptic number.

121535652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121535652 is an abundant number, since it is smaller than the sum of its proper divisors (221627868).

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

121535652 is a wasteful number, since it uses less digits than its factorization.

121535652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85140 (or 85138 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 121535652 is about 11024.3209314678. The cubic root of 121535652 is about 495.3375271687.

The spelling of 121535652 in words is "one hundred twenty-one million, five hundred thirty-five thousand, six hundred fifty-two".