159149557 has 4 divisors (see below), whose sum is σ = 181885216. Its totient is φ = 136413900.

The previous prime is 159149531. The next prime is 159149561. The reversal of 159149557 is 755941951.

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 de Polignac number, because none of the positive numbers 2^k-159149557 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 (159149527) 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, 11367819 + ... + 11367832.

It is an arithmetic number, because the mean of its divisors is an integer number (45471304).

Almost surely, 2^159149557 is an apocalyptic number.

It is an amenable number.

159149557 is a deficient number, since it is larger than the sum of its proper divisors (22735659).

159149557 is an equidigital number, since it uses as much as digits as its factorization.

159149557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22735658.

The product of its digits is 283500, while the sum is 46.

The square root of 159149557 is about 12615.4491398444. The cubic root of 159149557 is about 541.9199568167.

The spelling of 159149557 in words is "one hundred fifty-nine million, one hundred forty-nine thousand, five hundred fifty-seven".