1215036145 has 16 divisors (see below), whose sum is σ = 1470369600. Its totient is φ = 963835200.

The previous prime is 1215036139. The next prime is 1215036169. The reversal of 1215036145 is 5416305121.

It is not a de Polignac number, because 1215036145 - 2²³ = 1206647537 is a prime.

It is a super-2 number, since 2×1215036145² = 2952625667312922050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603190 + ... + 605200.

It is an arithmetic number, because the mean of its divisors is an integer number (91898100).

Almost surely, 2^1215036145 is an apocalyptic number.

It is an amenable number.

1215036145 is a deficient number, since it is larger than the sum of its proper divisors (255333455).

1215036145 is a wasteful number, since it uses less digits than its factorization.

1215036145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1215036145 is about 34857.3685897258. The cubic root of 1215036145 is about 1067.0785726337.

The spelling of 1215036145 in words is "one billion, two hundred fifteen million, thirty-six thousand, one hundred forty-five".