1264386315 has 8 divisors (see below), whose sum is σ = 2023018128. Its totient is φ = 674339360.

The previous prime is 1264386313. The next prime is 1264386323. The reversal of 1264386315 is 5136834621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1264386315 - 2¹ = 1264386313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264386313) by changing a digit.

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, 42146196 + ... + 42146225.

It is an arithmetic number, because the mean of its divisors is an integer number (252877266).

Almost surely, 2^1264386315 is an apocalyptic number.

1264386315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1264386315 is a deficient number, since it is larger than the sum of its proper divisors (758631813).

1264386315 is an equidigital number, since it uses as much as digits as its factorization.

1264386315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84292429.

The product of its digits is 103680, while the sum is 39.

The square root of 1264386315 is about 35558.2102333624. The cubic root of 1264386315 is about 1081.3341750544.

The spelling of 1264386315 in words is "one billion, two hundred sixty-four million, three hundred eighty-six thousand, three hundred fifteen".