3812165231 has 8 divisors (see below), whose sum is σ = 4369691040. Its totient is φ = 3257872128.

The previous prime is 3812165219. The next prime is 3812165243. The reversal of 3812165231 is 1325612183.

It is an interprime number because it is at equal distance from previous prime (3812165219) and next prime (3812165243).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3812165231 is a prime.

It is a super-2 number, since 2×3812165231² = 29065207496890566722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3812165431) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 805646 + ... + 810363.

It is an arithmetic number, because the mean of its divisors is an integer number (546211380).

Almost surely, 2^3812165231 is an apocalyptic number.

3812165231 is a deficient number, since it is larger than the sum of its proper divisors (557525809).

3812165231 is a wasteful number, since it uses less digits than its factorization.

3812165231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616353.

The product of its digits is 8640, while the sum is 32.

The square root of 3812165231 is about 61742.7342365075. The cubic root of 3812165231 is about 1562.1542163557.

It can be divided in two parts, 381 and 2165231, that added together give a palindrome (2165612).

The spelling of 3812165231 in words is "three billion, eight hundred twelve million, one hundred sixty-five thousand, two hundred thirty-one".