159193893 has 4 divisors (see below), whose sum is σ = 212258528. Its totient is φ = 106129260.

The previous prime is 159193891. The next prime is 159193921. The reversal of 159193893 is 398391951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 159193893 - 2¹ = 159193891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159193891) 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, 26532313 + ... + 26532318.

It is an arithmetic number, because the mean of its divisors is an integer number (53064632).

Almost surely, 2^159193893 is an apocalyptic number.

It is an amenable number.

159193893 is a deficient number, since it is larger than the sum of its proper divisors (53064635).

159193893 is an equidigital number, since it uses as much as digits as its factorization.

159193893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53064634.

The product of its digits is 262440, while the sum is 48.

The square root of 159193893 is about 12617.2062280047. The cubic root of 159193893 is about 541.9702749637.

The spelling of 159193893 in words is "one hundred fifty-nine million, one hundred ninety-three thousand, eight hundred ninety-three".