159979951 has 4 divisors (see below), whose sum is σ = 161201304. Its totient is φ = 158758600.

The previous prime is 159979901. The next prime is 159979993.

159979951 is nontrivially palindromic in base 10.

159979951 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.

It is a cyclic number.

It is not a de Polignac number, because 159979951 - 2¹⁷ = 159848879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159979892 and 159979901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159979901) 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, 610480 + ... + 610741.

It is an arithmetic number, because the mean of its divisors is an integer number (40300326).

Almost surely, 2^159979951 is an apocalyptic number.

159979951 is a deficient number, since it is larger than the sum of its proper divisors (1221353).

159979951 is a wasteful number, since it uses less digits than its factorization.

159979951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221352.

The product of its digits is 1148175, while the sum is 55.

The square root of 159979951 is about 12648.3181095354. The cubic root of 159979951 is about 542.8608468056.

It can be divided in two parts, 15997995 and 1, that added together give a triangular number (15997996 = T₅₆₅₆).

The spelling of 159979951 in words is "one hundred fifty-nine million, nine hundred seventy-nine thousand, nine hundred fifty-one".