1215674313 has 32 divisors (see below), whose sum is σ = 1901636352. Its totient is φ = 676300800.

The previous prime is 1215674309. The next prime is 1215674323. The reversal of 1215674313 is 3134765121.

It is not a de Polignac number, because 1215674313 - 2² = 1215674309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1215674323) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 509383 + ... + 511763.

It is an arithmetic number, because the mean of its divisors is an integer number (59426136).

Almost surely, 2^1215674313 is an apocalyptic number.

It is an amenable number.

1215674313 is a deficient number, since it is larger than the sum of its proper divisors (685962039).

1215674313 is a wasteful number, since it uses less digits than its factorization.

1215674313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025.

The product of its digits is 15120, while the sum is 33.

The square root of 1215674313 is about 34866.5213779637. The cubic root of 1215674313 is about 1067.2653589046.

The spelling of 1215674313 in words is "one billion, two hundred fifteen million, six hundred seventy-four thousand, three hundred thirteen".