3149357865 has 16 divisors (see below), whose sum is σ = 5335383168. Its totient is φ = 1580854016.

The previous prime is 3149357851. The next prime is 3149357867. The reversal of 3149357865 is 5687539413.

It is a cyclic number.

It is not a de Polignac number, because 3149357865 - 2⁵ = 3149357833 is a prime.

It is a super-4 number, since 4×3149357865⁴ (a number of 39 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (3149357867) 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 15 ways as a sum of consecutive naturals, for example, 6174957 + ... + 6175466.

It is an arithmetic number, because the mean of its divisors is an integer number (333461448).

Almost surely, 2^3149357865 is an apocalyptic number.

It is an amenable number.

3149357865 is a deficient number, since it is larger than the sum of its proper divisors (2186025303).

3149357865 is a wasteful number, since it uses less digits than its factorization.

3149357865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350448.

The product of its digits is 2721600, while the sum is 51.

The square root of 3149357865 is about 56119.1399167877. The cubic root of 3149357865 is about 1465.7975932302.

The spelling of 3149357865 in words is "three billion, one hundred forty-nine million, three hundred fifty-seven thousand, eight hundred sixty-five".