1275203264 has 14 divisors (see below), whose sum is σ = 2530481604. Its totient is φ = 637601600.

The previous prime is 1275203263. The next prime is 1275203291. The reversal of 1275203264 is 4623025721.

It is a super-2 number, since 2×1275203264² = 3252286729032507392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1275203264.

It is not an unprimeable number, because it can be changed into a prime (1275203263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9962462 + ... + 9962589.

It is an arithmetic number, because the mean of its divisors is an integer number (180748686).

Almost surely, 2^1275203264 is an apocalyptic number.

It is an amenable number.

1275203264 is a deficient number, since it is larger than the sum of its proper divisors (1255278340).

1275203264 is an equidigital number, since it uses as much as digits as its factorization.

1275203264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19925063 (or 19925053 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 1275203264 is about 35709.9882945934. The cubic root of 1275203264 is about 1084.4090629911.

Adding to 1275203264 its reverse (4623025721), we get a palindrome (5898228985).

The spelling of 1275203264 in words is "one billion, two hundred seventy-five million, two hundred three thousand, two hundred sixty-four".