159372091 has 2 divisors, whose sum is σ = 159372092. Its totient is φ = 159372090.

The previous prime is 159372053. The next prime is 159372121. The reversal of 159372091 is 190273951.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159372091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159372091.

It is not a weakly prime, because it can be changed into another prime (159372011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79686045 + 79686046.

It is an arithmetic number, because the mean of its divisors is an integer number (79686046).

Almost surely, 2^159372091 is an apocalyptic number.

159372091 is a deficient number, since it is larger than the sum of its proper divisors (1).

159372091 is an equidigital number, since it uses as much as digits as its factorization.

159372091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 159372091 is about 12624.2659588588. The cubic root of 159372091 is about 542.1724225962.

The spelling of 159372091 in words is "one hundred fifty-nine million, three hundred seventy-two thousand, ninety-one".