120132521 has 4 divisors (see below), whose sum is σ = 120229200. Its totient is φ = 120035844.

The previous prime is 120132511. The next prime is 120132527. The reversal of 120132521 is 125231021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 125231021 = 23 ⋅5444827.

It is a cyclic number.

It is not a de Polignac number, because 120132521 - 2²² = 115938217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120132521.

It is not an unprimeable number, because it can be changed into a prime (120132527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46451 + ... + 48968.

It is an arithmetic number, because the mean of its divisors is an integer number (30057300).

Almost surely, 2^120132521 is an apocalyptic number.

It is an amenable number.

120132521 is a deficient number, since it is larger than the sum of its proper divisors (96679).

120132521 is an equidigital number, since it uses as much as digits as its factorization.

120132521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96678.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 120132521 is about 10960.4982094793. The cubic root of 120132521 is about 493.4239174524.

Adding to 120132521 its reverse (125231021), we get a palindrome (245363542).

The spelling of 120132521 in words is "one hundred twenty million, one hundred thirty-two thousand, five hundred twenty-one".