159136465 has 4 divisors (see below), whose sum is σ = 190963764. Its totient is φ = 127309168.

The previous prime is 159136459. The next prime is 159136469. The reversal of 159136465 is 564631951.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 111028369 + 48108096 = 10537^2 + 6936^2 .

It is a cyclic number.

It is not a de Polignac number, because 159136465 - 2⁵ = 159136433 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159136469) 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, 15913642 + ... + 15913651.

It is an arithmetic number, because the mean of its divisors is an integer number (47740941).

Almost surely, 2^159136465 is an apocalyptic number.

It is an amenable number.

159136465 is a deficient number, since it is larger than the sum of its proper divisors (31827299).

159136465 is an equidigital number, since it uses as much as digits as its factorization.

159136465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31827298.

The product of its digits is 97200, while the sum is 40.

The square root of 159136465 is about 12614.9302415828. The cubic root of 159136465 is about 541.9050965583.

The spelling of 159136465 in words is "one hundred fifty-nine million, one hundred thirty-six thousand, four hundred sixty-five".