2031615412 has 12 divisors (see below), whose sum is σ = 3556956256. Its totient is φ = 1015342200.

The previous prime is 2031615389. The next prime is 2031615419. The reversal of 2031615412 is 2145161302.

It is a happy number.

2031615412 is nontrivially palindromic in base 3.

It is a super-2 number, since 2×2031615412² = 8254922364551859488, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031615419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106464 + ... + 124087.

Almost surely, 2^2031615412 is an apocalyptic number.

It is an amenable number.

2031615412 is a deficient number, since it is larger than the sum of its proper divisors (1525340844).

2031615412 is a wasteful number, since it uses less digits than its factorization.

2031615412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232758 (or 232756 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2031615412 is about 45073.4446431599. Note that the first 3 decimals coincide. The cubic root of 2031615412 is about 1266.5251929098.

Adding to 2031615412 its reverse (2145161302), we get a palindrome (4176776714).

The spelling of 2031615412 in words is "two billion, thirty-one million, six hundred fifteen thousand, four hundred twelve".