120157559 has 4 divisors (see below), whose sum is σ = 120502200. Its totient is φ = 119812920.

The previous prime is 120157549. The next prime is 120157561. The reversal of 120157559 is 955751021.

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 120157559 - 2¹² = 120153463 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 (120157549) 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, 171797 + ... + 172494.

It is an arithmetic number, because the mean of its divisors is an integer number (30125550).

Almost surely, 2^120157559 is an apocalyptic number.

120157559 is a deficient number, since it is larger than the sum of its proper divisors (344641).

120157559 is an equidigital number, since it uses as much as digits as its factorization.

120157559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344640.

The product of its (nonzero) digits is 15750, while the sum is 35.

The square root of 120157559 is about 10961.6403425765. The cubic root of 120157559 is about 493.4581948480.

The spelling of 120157559 in words is "one hundred twenty million, one hundred fifty-seven thousand, five hundred fifty-nine".