1275112764 has 36 divisors (see below), whose sum is σ = 3228465240. Its totient is φ = 424343520.

The previous prime is 1275112757. The next prime is 1275112793. The reversal of 1275112764 is 4672115721.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6327 + ... + 50894.

It is an arithmetic number, because the mean of its divisors is an integer number (89679590).

Almost surely, 2^1275112764 is an apocalyptic number.

It is an amenable number.

1275112764 is an abundant number, since it is smaller than the sum of its proper divisors (1953352476).

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

1275112764 is a wasteful number, since it uses less digits than its factorization.

1275112764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57850 (or 57845 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 1275112764 is about 35708.7211196369. The cubic root of 1275112764 is about 1084.3834092137.

The spelling of 1275112764 in words is "one billion, two hundred seventy-five million, one hundred twelve thousand, seven hundred sixty-four".