15315513212 has 12 divisors (see below), whose sum is σ = 26845875336. Its totient is φ = 7645263120.

The previous prime is 15315513211. The next prime is 15315513229. The reversal of 15315513212 is 21231551351.

15315513212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15315513211) 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 3 ways as a sum of consecutive naturals, for example, 3120614 + ... + 3125517.

It is an arithmetic number, because the mean of its divisors is an integer number (2237156278).

Almost surely, 2^15315513212 is an apocalyptic number.

It is an amenable number.

15315513212 is a deficient number, since it is larger than the sum of its proper divisors (11530362124).

15315513212 is a wasteful number, since it uses less digits than its factorization.

15315513212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246748 (or 6246746 counting only the distinct ones).

The product of its digits is 4500, while the sum is 29.

The spelling of 15315513212 in words is "fifteen billion, three hundred fifteen million, five hundred thirteen thousand, two hundred twelve".