1275294252 has 12 divisors (see below), whose sum is σ = 2975686616. Its totient is φ = 425098080.

The previous prime is 1275294247. The next prime is 1275294283. The reversal of 1275294252 is 2524925721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1275294252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53137249 + ... + 53137272.

Almost surely, 2^1275294252 is an apocalyptic number.

1275294252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1275294252 is an abundant number, since it is smaller than the sum of its proper divisors (1700392364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1275294252 is a wasteful number, since it uses less digits than its factorization.

1275294252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106274528 (or 106274526 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 1275294252 is about 35711.2622571648. The cubic root of 1275294252 is about 1084.4348538769.

The spelling of 1275294252 in words is "one billion, two hundred seventy-five million, two hundred ninety-four thousand, two hundred fifty-two".