159923464 has 8 divisors (see below), whose sum is σ = 299856510. Its totient is φ = 79961728.

The previous prime is 159923447. The next prime is 159923507. The reversal of 159923464 is 464329951.

It can be written as a sum of positive squares in only one way, i.e., 157703364 + 2220100 = 12558^2 + 1490^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 159923464.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9995209 + ... + 9995224.

Almost surely, 2^159923464 is an apocalyptic number.

It is an amenable number.

159923464 is a deficient number, since it is larger than the sum of its proper divisors (139933046).

159923464 is a wasteful number, since it uses less digits than its factorization.

159923464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19990439 (or 19990435 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 159923464 is about 12646.0849277553. The cubic root of 159923464 is about 542.7969467351.

The spelling of 159923464 in words is "one hundred fifty-nine million, nine hundred twenty-three thousand, four hundred sixty-four".