159161659 has 4 divisors (see below), whose sum is σ = 159456400. Its totient is φ = 158866920.

The previous prime is 159161617. The next prime is 159161663. The reversal of 159161659 is 956161951.

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

It is a cyclic number.

It is not a de Polignac number, because 159161659 - 2¹⁷ = 159030587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159161669) 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, 146559 + ... + 147640.

It is an arithmetic number, because the mean of its divisors is an integer number (39864100).

Almost surely, 2^159161659 is an apocalyptic number.

159161659 is a deficient number, since it is larger than the sum of its proper divisors (294741).

159161659 is an equidigital number, since it uses as much as digits as its factorization.

159161659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294740.

The product of its digits is 72900, while the sum is 43.

The square root of 159161659 is about 12615.9287807121. The cubic root of 159161659 is about 541.9336926368.

The spelling of 159161659 in words is "one hundred fifty-nine million, one hundred sixty-one thousand, six hundred fifty-nine".