2031515412 has 12 divisors (see below), whose sum is σ = 4740202656. Its totient is φ = 677171800.

The previous prime is 2031515407. The next prime is 2031515413. The reversal of 2031515412 is 2145151302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031515413) 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, 84646464 + ... + 84646487.

It is an arithmetic number, because the mean of its divisors is an integer number (395016888).

Almost surely, 2^2031515412 is an apocalyptic number.

It is an amenable number.

2031515412 is an abundant number, since it is smaller than the sum of its proper divisors (2708687244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031515412 is a wasteful number, since it uses less digits than its factorization.

2031515412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169292958 (or 169292956 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2031515412 is about 45072.3353288910. The cubic root of 2031515412 is about 1266.5044123039.

Adding to 2031515412 its reverse (2145151302), we get a palindrome (4176666714).

The spelling of 2031515412 in words is "two billion, thirty-one million, five hundred fifteen thousand, four hundred twelve".