120712287 has 4 divisors (see below), whose sum is σ = 160949720. Its totient is φ = 80474856.

The previous prime is 120712259. The next prime is 120712313. The reversal of 120712287 is 782217021.

It is a happy number.

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

It is not a de Polignac number, because 120712287 - 2¹² = 120708191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120712687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20118712 + ... + 20118717.

It is an arithmetic number, because the mean of its divisors is an integer number (40237430).

Almost surely, 2^120712287 is an apocalyptic number.

120712287 is a deficient number, since it is larger than the sum of its proper divisors (40237433).

120712287 is an equidigital number, since it uses as much as digits as its factorization.

120712287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40237432.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 120712287 is about 10986.9143529928. The cubic root of 120712287 is about 494.2164073943.

The spelling of 120712287 in words is "one hundred twenty million, seven hundred twelve thousand, two hundred eighty-seven".