120402542 has 8 divisors (see below), whose sum is σ = 194496456. Its totient is φ = 55570392.

The previous prime is 120402521. The next prime is 120402553. The reversal of 120402542 is 245204021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2315408 + ... + 2315459.

It is an arithmetic number, because the mean of its divisors is an integer number (24312057).

Almost surely, 2^120402542 is an apocalyptic number.

120402542 is a deficient number, since it is larger than the sum of its proper divisors (74093914).

120402542 is a wasteful number, since it uses less digits than its factorization.

120402542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630882.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 120402542 is about 10972.8092118655. The cubic root of 120402542 is about 493.7933292745.

Adding to 120402542 its reverse (245204021), we get a palindrome (365606563).

The spelling of 120402542 in words is "one hundred twenty million, four hundred two thousand, five hundred forty-two".