3165412645 has 4 divisors (see below), whose sum is σ = 3798495180. Its totient is φ = 2532330112.

The previous prime is 3165412637. The next prime is 3165412661. The reversal of 3165412645 is 5462145613.

It is a Cunningham number, because it is equal to 56262²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5462145613 = 929 ⋅5879597.

It can be written as a sum of positive squares in 2 ways, for example, as 1139602564 + 2025810081 = 33758^2 + 45009^2 .

It is a cyclic number.

It is not a de Polignac number, because 3165412645 - 2³ = 3165412637 is a prime.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 316541260 + ... + 316541269.

It is an arithmetic number, because the mean of its divisors is an integer number (949623795).

Almost surely, 2^3165412645 is an apocalyptic number.

It is an amenable number.

3165412645 is a deficient number, since it is larger than the sum of its proper divisors (633082535).

3165412645 is an equidigital number, since it uses as much as digits as its factorization.

3165412645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633082534.

The product of its digits is 86400, while the sum is 37.

The square root of 3165412645 is about 56262.0000088870. Note that the first 5 decimals coincide. The cubic root of 3165412645 is about 1468.2841511108.

The spelling of 3165412645 in words is "three billion, one hundred sixty-five million, four hundred twelve thousand, six hundred forty-five".