1215012470 has 16 divisors (see below), whose sum is σ = 2499454368. Its totient is φ = 416575680.

The previous prime is 1215012451. The next prime is 1215012493. The reversal of 1215012470 is 742105121.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8678591 + ... + 8678730.

It is an arithmetic number, because the mean of its divisors is an integer number (156215898).

Almost surely, 2^1215012470 is an apocalyptic number.

1215012470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215012470 is an abundant number, since it is smaller than the sum of its proper divisors (1284441898).

1215012470 is a wasteful number, since it uses less digits than its factorization.

1215012470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17357335.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1215012470 is about 34857.0289898609. The cubic root of 1215012470 is about 1067.0716419073.

Adding to 1215012470 its reverse (742105121), we get a palindrome (1957117591).

The spelling of 1215012470 in words is "one billion, two hundred fifteen million, twelve thousand, four hundred seventy".