121507532 has 12 divisors (see below), whose sum is σ = 214589760. Its totient is φ = 60196176.

The previous prime is 121507523. The next prime is 121507537. The reversal of 121507532 is 235705121.

It is not an unprimeable number, because it can be changed into a prime (121507537) 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, 138908 + ... + 139779.

It is an arithmetic number, because the mean of its divisors is an integer number (17882480).

Almost surely, 2^121507532 is an apocalyptic number.

It is an amenable number.

121507532 is a deficient number, since it is larger than the sum of its proper divisors (93082228).

121507532 is a wasteful number, since it uses less digits than its factorization.

121507532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278800 (or 278798 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 121507532 is about 11023.0454956877. The cubic root of 121507532 is about 495.2993217384.

The spelling of 121507532 in words is "one hundred twenty-one million, five hundred seven thousand, five hundred thirty-two".