3170661281 has 4 divisors (see below), whose sum is σ = 3193804932. Its totient is φ = 3147517632.

The previous prime is 3170661269. The next prime is 3170661283. The reversal of 3170661281 is 1821660713.

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 2360405056 + 810256225 = 48584^2 + 28465^2 .

It is a cyclic number.

It is not a de Polignac number, because 3170661281 - 2⁶ = 3170661217 is a prime.

It is a super-2 number, since 2×3170661281² = 20106185917665121922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3170661283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11571620 + ... + 11571893.

It is an arithmetic number, because the mean of its divisors is an integer number (798451233).

Almost surely, 2^3170661281 is an apocalyptic number.

It is an amenable number.

3170661281 is a deficient number, since it is larger than the sum of its proper divisors (23143651).

3170661281 is a wasteful number, since it uses less digits than its factorization.

3170661281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23143650.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 3170661281 is about 56308.6252806797. The cubic root of 3170661281 is about 1469.0952337307.

The spelling of 3170661281 in words is "three billion, one hundred seventy million, six hundred sixty-one thousand, two hundred eighty-one".