120915902 has 4 divisors (see below), whose sum is σ = 181373856. Its totient is φ = 60457950.

The previous prime is 120915901. The next prime is 120915953. The reversal of 120915902 is 209519021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 209519021 = 541 ⋅387281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120915901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30228974 + ... + 30228977.

It is an arithmetic number, because the mean of its divisors is an integer number (45343464).

Almost surely, 2^120915902 is an apocalyptic number.

120915902 is a deficient number, since it is larger than the sum of its proper divisors (60457954).

120915902 is an equidigital number, since it uses as much as digits as its factorization.

120915902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60457953.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 120915902 is about 10996.1766991987. The cubic root of 120915902 is about 494.4941293206.

The spelling of 120915902 in words is "one hundred twenty million, nine hundred fifteen thousand, nine hundred two".