159582091 has 2 divisors, whose sum is σ = 159582092. Its totient is φ = 159582090.

The previous prime is 159582037. The next prime is 159582097. The reversal of 159582091 is 190285951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159582091 - 2⁹ = 159581579 is a prime.

It is not a weakly prime, because it can be changed into another prime (159582097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79791045 + 79791046.

It is an arithmetic number, because the mean of its divisors is an integer number (79791046).

Almost surely, 2^159582091 is an apocalyptic number.

159582091 is a deficient number, since it is larger than the sum of its proper divisors (1).

159582091 is an equidigital number, since it uses as much as digits as its factorization.

159582091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 159582091 is about 12632.5805360583. The cubic root of 159582091 is about 542.4104530574.

The spelling of 159582091 in words is "one hundred fifty-nine million, five hundred eighty-two thousand, ninety-one".