1215115504 has 20 divisors (see below), whose sum is σ = 2364397776. Its totient is φ = 604948352.

The previous prime is 1215115501. The next prime is 1215115519. The reversal of 1215115504 is 4055115121.

It is a super-2 number, since 2×1215115504² = 2953011376122348032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215115501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159244 + ... + 166699.

Almost surely, 2^1215115504 is an apocalyptic number.

It is an amenable number.

1215115504 is a deficient number, since it is larger than the sum of its proper divisors (1149282272).

1215115504 is a wasteful number, since it uses less digits than its factorization.

1215115504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326184 (or 326178 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 1215115504 is about 34858.5069100786. The cubic root of 1215115504 is about 1067.1018038891.

The spelling of 1215115504 in words is "one billion, two hundred fifteen million, one hundred fifteen thousand, five hundred four".