3912969145 has 16 divisors (see below), whose sum is σ = 4764049920. Its totient is φ = 3084868800.

The previous prime is 3912969119. The next prime is 3912969173. The reversal of 3912969145 is 5419692193.

It is not a de Polignac number, because 3912969145 - 2⁵ = 3912969113 is a prime.

It is a super-2 number, since 2×3912969145² = 30622655059444062050, which contains 22 as substring.

It is an unprimeable number.

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, 204540 + ... + 222850.

It is an arithmetic number, because the mean of its divisors is an integer number (297753120).

Almost surely, 2^3912969145 is an apocalyptic number.

It is an amenable number.

3912969145 is a deficient number, since it is larger than the sum of its proper divisors (851080775).

3912969145 is a wasteful number, since it uses less digits than its factorization.

3912969145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18936.

The product of its digits is 524880, while the sum is 49.

The square root of 3912969145 is about 62553.7300646412. The cubic root of 3912969145 is about 1575.8037916181.

The spelling of 3912969145 in words is "three billion, nine hundred twelve million, nine hundred sixty-nine thousand, one hundred forty-five".