120870447 has 4 divisors (see below), whose sum is σ = 161160600. Its totient is φ = 80580296.

The previous prime is 120870443. The next prime is 120870467. The reversal of 120870447 is 744078021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120870447 - 2² = 120870443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120870443) 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, 20145072 + ... + 20145077.

It is an arithmetic number, because the mean of its divisors is an integer number (40290150).

Almost surely, 2^120870447 is an apocalyptic number.

120870447 is a deficient number, since it is larger than the sum of its proper divisors (40290153).

120870447 is an equidigital number, since it uses as much as digits as its factorization.

120870447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40290152.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 120870447 is about 10994.1096501718. The cubic root of 120870447 is about 494.4321577424.

The spelling of 120870447 in words is "one hundred twenty million, eight hundred seventy thousand, four hundred forty-seven".