1215028914 has 16 divisors (see below), whose sum is σ = 2650972320. Its totient is φ = 368190560.

The previous prime is 1215028907. The next prime is 1215028933. The reversal of 1215028914 is 4198205121.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 9204699 + ... + 9204830.

It is an arithmetic number, because the mean of its divisors is an integer number (165685770).

Almost surely, 2^1215028914 is an apocalyptic number.

1215028914 is an abundant number, since it is smaller than the sum of its proper divisors (1435943406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215028914 is a wasteful number, since it uses less digits than its factorization.

1215028914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18409545.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 1215028914 is about 34857.2648668825. The cubic root of 1215028914 is about 1067.0764558077.

The spelling of 1215028914 in words is "one billion, two hundred fifteen million, twenty-eight thousand, nine hundred fourteen".