3161122345 has 16 divisors (see below), whose sum is σ = 3897483408. Its totient is φ = 2459842560.

The previous prime is 3161122337. The next prime is 3161122361. The reversal of 3161122345 is 5432211613.

It can be written as a sum of positive squares in 8 ways, for example, as 1133601561 + 2027520784 = 33669^2 + 45028^2 .

It is not a de Polignac number, because 3161122345 - 2³ = 3161122337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46207 + ... + 91963.

It is an arithmetic number, because the mean of its divisors is an integer number (243592713).

Almost surely, 2^3161122345 is an apocalyptic number.

It is an amenable number.

3161122345 is a deficient number, since it is larger than the sum of its proper divisors (736361063).

3161122345 is a wasteful number, since it uses less digits than its factorization.

3161122345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46140.

The product of its digits is 4320, while the sum is 28.

The square root of 3161122345 is about 56223.8592147497. The cubic root of 3161122345 is about 1467.6204959165.

Adding to 3161122345 its reverse (5432211613), we get a palindrome (8593333958).

It can be divided in two parts, 31611 and 22345, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 3161122345 in words is "three billion, one hundred sixty-one million, one hundred twenty-two thousand, three hundred forty-five".