159440034157 has 4 divisors (see below), whose sum is σ = 159788918716. Its totient is φ = 159091149600.

The previous prime is 159440034151. The next prime is 159440034167. The reversal of 159440034157 is 751430044951.

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 140033872521 + 19406161636 = 374211^2 + 139306^2 .

It is a cyclic number.

It is not a de Polignac number, because 159440034157 - 2²⁷ = 159305816429 is a prime.

It is a super-2 number, since 2×159440034157² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159440034151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174441594 + ... + 174442507.

It is an arithmetic number, because the mean of its divisors is an integer number (39947229679).

Almost surely, 2^159440034157 is an apocalyptic number.

It is an amenable number.

159440034157 is a deficient number, since it is larger than the sum of its proper divisors (348884559).

159440034157 is an equidigital number, since it uses as much as digits as its factorization.

159440034157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348884558.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 159440034157 in words is "one hundred fifty-nine billion, four hundred forty million, thirty-four thousand, one hundred fifty-seven".