159881401 has 2 divisors, whose sum is σ = 159881402. Its totient is φ = 159881400.

The previous prime is 159881387. The next prime is 159881419. The reversal of 159881401 is 104188951.

159881401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89321401 + 70560000 = 9451^2 + 8400^2 .

It is a cyclic number.

It is not a de Polignac number, because 159881401 - 2⁵ = 159881369 is a prime.

It is not a weakly prime, because it can be changed into another prime (159881471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79940700 + 79940701.

It is an arithmetic number, because the mean of its divisors is an integer number (79940701).

Almost surely, 2^159881401 is an apocalyptic number.

It is an amenable number.

159881401 is a deficient number, since it is larger than the sum of its proper divisors (1).

159881401 is an equidigital number, since it uses as much as digits as its factorization.

159881401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 37.

The square root of 159881401 is about 12644.4217345041. The cubic root of 159881401 is about 542.7493538232.

The spelling of 159881401 in words is "one hundred fifty-nine million, eight hundred eighty-one thousand, four hundred one".