159431338025 has 12 divisors (see below), whose sum is σ = 197753574732. Its totient is φ = 127507189440.

The previous prime is 159431338021. The next prime is 159431338039. The reversal of 159431338025 is 520833134951.

It can be written as a sum of positive squares in 6 ways, for example, as 22599409561 + 136831928464 = 150331^2 + 369908^2 .

It is not a de Polignac number, because 159431338025 - 2² = 159431338021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159431338021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 861014 + ... + 1029663.

It is an arithmetic number, because the mean of its divisors is an integer number (16479464561).

Almost surely, 2^159431338025 is an apocalyptic number.

It is an amenable number.

159431338025 is a deficient number, since it is larger than the sum of its proper divisors (38322236707).

159431338025 is a wasteful number, since it uses less digits than its factorization.

159431338025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894060 (or 1894055 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 159431338025 in words is "one hundred fifty-nine billion, four hundred thirty-one million, three hundred thirty-eight thousand, twenty-five".