159979157 has 16 divisors (see below), whose sum is σ = 177634800. Its totient is φ = 143119872.

The previous prime is 159979151. The next prime is 159979177. The reversal of 159979157 is 751979951.

It can be written as a sum of positive squares in 8 ways, for example, as 1999396 + 157979761 = 1414^2 + 12569^2 .

It is a cyclic number.

It is not a de Polignac number, because 159979157 - 2¹² = 159975061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159979099 and 159979108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159979151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167393 + ... + 168345.

It is an arithmetic number, because the mean of its divisors is an integer number (11102175).

Almost surely, 2^159979157 is an apocalyptic number.

It is an amenable number.

159979157 is a deficient number, since it is larger than the sum of its proper divisors (17655643).

159979157 is a wasteful number, since it uses less digits than its factorization.

159979157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352.

The product of its digits is 893025, while the sum is 53.

The square root of 159979157 is about 12648.2867219240. The cubic root of 159979157 is about 542.8599487093.

The spelling of 159979157 in words is "one hundred fifty-nine million, nine hundred seventy-nine thousand, one hundred fifty-seven".