159611953 has 4 divisors (see below), whose sum is σ = 163008000. Its totient is φ = 156215908.

The previous prime is 159611941. The next prime is 159611971. The reversal of 159611953 is 359116951.

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 a cyclic number.

It is not a de Polignac number, because 159611953 - 2¹³ = 159603761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159621953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1697953 + ... + 1698046.

It is an arithmetic number, because the mean of its divisors is an integer number (40752000).

Almost surely, 2^159611953 is an apocalyptic number.

It is an amenable number.

159611953 is a deficient number, since it is larger than the sum of its proper divisors (3396047).

159611953 is an equidigital number, since it uses as much as digits as its factorization.

159611953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396046.

The product of its digits is 36450, while the sum is 40.

The square root of 159611953 is about 12633.7624245511. The cubic root of 159611953 is about 542.4442840272. Note that the first 3 decimals are identical.

The spelling of 159611953 in words is "one hundred fifty-nine million, six hundred eleven thousand, nine hundred fifty-three".