120840542 has 16 divisors (see below), whose sum is σ = 187440000. Its totient is φ = 58367520.

The previous prime is 120840523. The next prime is 120840569. The reversal of 120840542 is 245048021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42584 + ... + 45332.

It is an arithmetic number, because the mean of its divisors is an integer number (11715000).

Almost surely, 2^120840542 is an apocalyptic number.

120840542 is a deficient number, since it is larger than the sum of its proper divisors (66599458).

120840542 is a wasteful number, since it uses less digits than its factorization.

120840542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 120840542 is about 10992.7495195697. The cubic root of 120840542 is about 494.3913779554.

Adding to 120840542 its reverse (245048021), we get a palindrome (365888563).

The spelling of 120840542 in words is "one hundred twenty million, eight hundred forty thousand, five hundred forty-two".