3251159881 has 4 divisors (see below), whose sum is σ = 3253182100. Its totient is φ = 3249137664.

The previous prime is 3251159861. The next prime is 3251159887. The reversal of 3251159881 is 1889511523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1889511523 = 37 ⋅51067879.

It can be written as a sum of positive squares in 2 ways, for example, as 1808375625 + 1442784256 = 42525^2 + 37984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3251159881 is a prime.

It is a super-2 number, since 2×3251159881² = 21140081143647868322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3251159887) 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, 1008696 + ... + 1011913.

It is an arithmetic number, because the mean of its divisors is an integer number (813295525).

Almost surely, 2^3251159881 is an apocalyptic number.

It is an amenable number.

3251159881 is a deficient number, since it is larger than the sum of its proper divisors (2022219).

3251159881 is a wasteful number, since it uses less digits than its factorization.

3251159881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022218.

The product of its digits is 86400, while the sum is 43.

The square root of 3251159881 is about 57018.9431768075. The cubic root of 3251159881 is about 1481.4242257018.

The spelling of 3251159881 in words is "three billion, two hundred fifty-one million, one hundred fifty-nine thousand, eight hundred eighty-one".