3230515981 has 16 divisors (see below), whose sum is σ = 4063310208. Its totient is φ = 2495001600.

The previous prime is 3230515979. The next prime is 3230516011. The reversal of 3230515981 is 1895150323.

It is a happy number.

It is not a de Polignac number, because 3230515981 - 2¹ = 3230515979 is a prime.

It is a super-2 number, since 2×3230515981² = 20872467006992784722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3230515981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3230515901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176940 + ... + 194341.

It is an arithmetic number, because the mean of its divisors is an integer number (253956888).

Almost surely, 2^3230515981 is an apocalyptic number.

It is an amenable number.

3230515981 is a deficient number, since it is larger than the sum of its proper divisors (832794227).

3230515981 is a wasteful number, since it uses less digits than its factorization.

3230515981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371412.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 3230515981 is about 56837.6282140626. The cubic root of 3230515981 is about 1478.2820309496.

The spelling of 3230515981 in words is "three billion, two hundred thirty million, five hundred fifteen thousand, nine hundred eighty-one".