159397557 has 8 divisors (see below), whose sum is σ = 231851040. Its totient is φ = 96604560.

The previous prime is 159397523. The next prime is 159397561. The reversal of 159397557 is 755793951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 159397557 - 2¹² = 159393461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159397507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2415082 + ... + 2415147.

It is an arithmetic number, because the mean of its divisors is an integer number (28981380).

Almost surely, 2^159397557 is an apocalyptic number.

It is an amenable number.

159397557 is a deficient number, since it is larger than the sum of its proper divisors (72453483).

159397557 is a wasteful number, since it uses less digits than its factorization.

159397557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830243.

The product of its digits is 1488375, while the sum is 51.

The square root of 159397557 is about 12625.2745316686. The cubic root of 159397557 is about 542.2012988933.

The spelling of 159397557 in words is "one hundred fifty-nine million, three hundred ninety-seven thousand, five hundred fifty-seven".