159157093 has 4 divisors (see below), whose sum is σ = 161532640. Its totient is φ = 156781548.

The previous prime is 159157073. The next prime is 159157099. The reversal of 159157093 is 390751951.

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, and also an emirpimes, since its reverse is a distinct semiprime: 390751951 = 233 ⋅1677047.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159157093 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 (159157099) 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, 1187673 + ... + 1187806.

It is an arithmetic number, because the mean of its divisors is an integer number (40383160).

Almost surely, 2^159157093 is an apocalyptic number.

It is an amenable number.

159157093 is a deficient number, since it is larger than the sum of its proper divisors (2375547).

159157093 is an equidigital number, since it uses as much as digits as its factorization.

159157093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375546.

The product of its (nonzero) digits is 42525, while the sum is 40.

The square root of 159157093 is about 12615.7478177078. The cubic root of 159157093 is about 541.9285102897.

The spelling of 159157093 in words is "one hundred fifty-nine million, one hundred fifty-seven thousand, ninety-three".