159257057 has 4 divisors (see below), whose sum is σ = 161634096. Its totient is φ = 156880020.

The previous prime is 159257051. The next prime is 159257089. The reversal of 159257057 is 750752951.

159257057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159257057 - 2¹⁶ = 159191521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159257051) 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, 1188419 + ... + 1188552.

It is an arithmetic number, because the mean of its divisors is an integer number (40408524).

Almost surely, 2^159257057 is an apocalyptic number.

It is an amenable number.

159257057 is a deficient number, since it is larger than the sum of its proper divisors (2377039).

159257057 is an equidigital number, since it uses as much as digits as its factorization.

159257057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377038.

The product of its (nonzero) digits is 110250, while the sum is 41.

The square root of 159257057 is about 12619.7090695467. The cubic root of 159257057 is about 542.0419453928.

The spelling of 159257057 in words is "one hundred fifty-nine million, two hundred fifty-seven thousand, fifty-seven".