120747747 has 16 divisors (see below), whose sum is σ = 168440832. Its totient is φ = 76860480.

The previous prime is 120747743. The next prime is 120747749. The reversal of 120747747 is 747747021.

It is not a de Polignac number, because 120747747 - 2² = 120747743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120747743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4663 + ... + 16224.

It is an arithmetic number, because the mean of its divisors is an integer number (10527552).

Almost surely, 2^120747747 is an apocalyptic number.

120747747 is a deficient number, since it is larger than the sum of its proper divisors (47693085).

120747747 is a wasteful number, since it uses less digits than its factorization.

120747747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20978.

The product of its (nonzero) digits is 76832, while the sum is 39.

The square root of 120747747 is about 10988.5279723901. The cubic root of 120747747 is about 494.2647957246.

The spelling of 120747747 in words is "one hundred twenty million, seven hundred forty-seven thousand, seven hundred forty-seven".