1215252364 has 12 divisors (see below), whose sum is σ = 2126943000. Its totient is φ = 607554368.

The previous prime is 1215252347. The next prime is 1215252371. The reversal of 1215252364 is 4632525121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43467 + ... + 65725.

It is an arithmetic number, because the mean of its divisors is an integer number (177245250).

Almost surely, 2^1215252364 is an apocalyptic number.

It is an amenable number.

1215252364 is a deficient number, since it is larger than the sum of its proper divisors (911690636).

1215252364 is a wasteful number, since it uses less digits than its factorization.

1215252364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35912 (or 35910 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 1215252364 is about 34860.4699337229. The cubic root of 1215252364 is about 1067.1418653948.

Adding to 1215252364 its reverse (4632525121), we get a palindrome (5847777485).

It can be divided in two parts, 12152 and 52364, that added together give a square (64516 = 254²).

The spelling of 1215252364 in words is "one billion, two hundred fifteen million, two hundred fifty-two thousand, three hundred sixty-four".