159411903121 has 4 divisors (see below), whose sum is σ = 162419674932. Its totient is φ = 156404131312.

The previous prime is 159411903113. The next prime is 159411903127. The reversal of 159411903121 is 121309114951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145398078721 + 14013824400 = 381311^2 + 118380^2 .

It is a cyclic number.

It is not a de Polignac number, because 159411903121 - 2³ = 159411903113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159411903127) 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 3 ways as a sum of consecutive naturals, for example, 1503885826 + ... + 1503885931.

It is an arithmetic number, because the mean of its divisors is an integer number (40604918733).

Almost surely, 2^159411903121 is an apocalyptic number.

It is an amenable number.

159411903121 is a deficient number, since it is larger than the sum of its proper divisors (3007771811).

159411903121 is an equidigital number, since it uses as much as digits as its factorization.

159411903121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007771810.

The product of its (nonzero) digits is 9720, while the sum is 37.

The spelling of 159411903121 in words is "one hundred fifty-nine billion, four hundred eleven million, nine hundred three thousand, one hundred twenty-one".