1521513212 has 12 divisors (see below), whose sum is σ = 2670551520. Its totient is φ = 758498496.

The previous prime is 1521513211. The next prime is 1521513221. The reversal of 1521513212 is 2123151251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521513211) 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, 563012 + ... + 565707.

It is an arithmetic number, because the mean of its divisors is an integer number (222545960).

Almost surely, 2^1521513212 is an apocalyptic number.

It is an amenable number.

1521513212 is a deficient number, since it is larger than the sum of its proper divisors (1149038308).

1521513212 is a wasteful number, since it uses less digits than its factorization.

1521513212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129060 (or 1129058 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 1521513212 is about 39006.5790860978. The cubic root of 1521513212 is about 1150.1608374918.

Adding to 1521513212 its reverse (2123151251), we get a palindrome (3644664463).

The spelling of 1521513212 in words is "one billion, five hundred twenty-one million, five hundred thirteen thousand, two hundred twelve".