1215314402 has 16 divisors (see below), whose sum is σ = 1845076320. Its totient is φ = 600301152.

The previous prime is 1215314389. The next prime is 1215314413. The reversal of 1215314402 is 2044135121.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 268853 + ... + 273335.

It is an arithmetic number, because the mean of its divisors is an integer number (115317270).

Almost surely, 2^1215314402 is an apocalyptic number.

1215314402 is a deficient number, since it is larger than the sum of its proper divisors (629761918).

1215314402 is a wasteful number, since it uses less digits than its factorization.

1215314402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1215314402 is about 34861.3597267806. The cubic root of 1215314402 is about 1067.1600240979.

Adding to 1215314402 its reverse (2044135121), we get a palindrome (3259449523).

The spelling of 1215314402 in words is "one billion, two hundred fifteen million, three hundred fourteen thousand, four hundred two".