159939401 has 8 divisors (see below), whose sum is σ = 170964864. Its totient is φ = 149253280.

The previous prime is 159939361. The next prime is 159939421. The reversal of 159939401 is 104939951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159939401 - 2⁶ = 159939337 is a prime.

It is a super-2 number, since 2×159939401² = 51161223984477602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (159939421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83861 + ... + 85746.

It is an arithmetic number, because the mean of its divisors is an integer number (21370608).

Almost surely, 2^159939401 is an apocalyptic number.

It is an amenable number.

159939401 is a deficient number, since it is larger than the sum of its proper divisors (11025463).

159939401 is a wasteful number, since it uses less digits than its factorization.

159939401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169671.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 159939401 is about 12646.7150280221. The cubic root of 159939401 is about 542.8149767506.

The spelling of 159939401 in words is "one hundred fifty-nine million, nine hundred thirty-nine thousand, four hundred one".