120665542 has 24 divisors (see below), whose sum is σ = 195388200. Its totient is φ = 55733760.

The previous prime is 120665539. The next prime is 120665543. The reversal of 120665542 is 245566021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120665543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62934 + ... + 64822.

It is an arithmetic number, because the mean of its divisors is an integer number (8141175).

Almost surely, 2^120665542 is an apocalyptic number.

120665542 is a deficient number, since it is larger than the sum of its proper divisors (74722658).

120665542 is a wasteful number, since it uses less digits than its factorization.

120665542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1951 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 120665542 is about 10984.7868436306. The cubic root of 120665542 is about 494.1526051937.

The spelling of 120665542 in words is "one hundred twenty million, six hundred sixty-five thousand, five hundred forty-two".