120157287 has 4 divisors (see below), whose sum is σ = 160209720. Its totient is φ = 80104856.

The previous prime is 120157283. The next prime is 120157291. The reversal of 120157287 is 782751021.

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

It is an interprime number because it is at equal distance from previous prime (120157283) and next prime (120157291).

It is a cyclic number.

It is not a de Polignac number, because 120157287 - 2² = 120157283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120157283) 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, 20026212 + ... + 20026217.

It is an arithmetic number, because the mean of its divisors is an integer number (40052430).

Almost surely, 2^120157287 is an apocalyptic number.

120157287 is a deficient number, since it is larger than the sum of its proper divisors (40052433).

120157287 is an equidigital number, since it uses as much as digits as its factorization.

120157287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40052432.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 120157287 is about 10961.6279356672. The cubic root of 120157287 is about 493.4578225015.

The spelling of 120157287 in words is "one hundred twenty million, one hundred fifty-seven thousand, two hundred eighty-seven".