159772099 has 4 divisors (see below), whose sum is σ = 166718736. Its totient is φ = 152825464.

The previous prime is 159772097. The next prime is 159772147. The reversal of 159772099 is 990277951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990277951 = 13 ⋅76175227.

It is a cyclic number.

It is not a de Polignac number, because 159772099 - 2¹ = 159772097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159772097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3473284 + ... + 3473329.

It is an arithmetic number, because the mean of its divisors is an integer number (41679684).

Almost surely, 2^159772099 is an apocalyptic number.

159772099 is a deficient number, since it is larger than the sum of its proper divisors (6946637).

159772099 is an equidigital number, since it uses as much as digits as its factorization.

159772099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6946636.

The product of its (nonzero) digits is 357210, while the sum is 49.

The square root of 159772099 is about 12640.0988524616. The cubic root of 159772099 is about 542.6256431364.

The spelling of 159772099 in words is "one hundred fifty-nine million, seven hundred seventy-two thousand, ninety-nine".