1264371115 has 32 divisors (see below), whose sum is σ = 1806520320. Its totient is φ = 831254400.

The previous prime is 1264371061. The next prime is 1264371133. The reversal of 1264371115 is 5111734621.

It is not a de Polignac number, because 1264371115 - 2⁹ = 1264370603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 31 ways as a sum of consecutive naturals, for example, 112920 + ... + 123610.

It is an arithmetic number, because the mean of its divisors is an integer number (56453760).

Almost surely, 2^1264371115 is an apocalyptic number.

1264371115 is a deficient number, since it is larger than the sum of its proper divisors (542149205).

1264371115 is a wasteful number, since it uses less digits than its factorization.

1264371115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10843.

The product of its digits is 5040, while the sum is 31.

The square root of 1264371115 is about 35557.9964986780. The cubic root of 1264371115 is about 1081.3298418995.

The spelling of 1264371115 in words is "one billion, two hundred sixty-four million, three hundred seventy-one thousand, one hundred fifteen".