159162861 has 32 divisors (see below), whose sum is σ = 255427200. Its totient is φ = 86860800.

The previous prime is 159162853. The next prime is 159162881. The reversal of 159162861 is 168261951.

It is not a de Polignac number, because 159162861 - 2³ = 159162853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159162811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13065 + ... + 22113.

It is an arithmetic number, because the mean of its divisors is an integer number (7982100).

Almost surely, 2^159162861 is an apocalyptic number.

159162861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

159162861 is a deficient number, since it is larger than the sum of its proper divisors (96264339).

159162861 is a wasteful number, since it uses less digits than its factorization.

159162861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9117.

The product of its digits is 25920, while the sum is 39.

The square root of 159162861 is about 12615.9764188112. The cubic root of 159162861 is about 541.9350568738.

The spelling of 159162861 in words is "one hundred fifty-nine million, one hundred sixty-two thousand, eight hundred sixty-one".