120491272 has 16 divisors (see below), whose sum is σ = 246459600. Its totient is φ = 54768720.

The previous prime is 120491243. The next prime is 120491279. The reversal of 120491272 is 272194021.

It is a self number, because there is not a number n which added to its sum of digits gives 120491272.

It is not an unprimeable number, because it can be changed into a prime (120491279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684522 + ... + 684697.

It is an arithmetic number, because the mean of its divisors is an integer number (15403725).

Almost surely, 2^120491272 is an apocalyptic number.

It is an amenable number.

120491272 is an abundant number, since it is smaller than the sum of its proper divisors (125968328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120491272 is a wasteful number, since it uses less digits than its factorization.

120491272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369236 (or 1369232 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 120491272 is about 10976.8516433447. The cubic root of 120491272 is about 493.9145989279.

The spelling of 120491272 in words is "one hundred twenty million, four hundred ninety-one thousand, two hundred seventy-two".