1275109960 has 32 divisors (see below), whose sum is σ = 2935722240. Its totient is φ = 498181824.

The previous prime is 1275109943. The next prime is 1275109981. The reversal of 1275109960 is 699015721.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368952 + ... + 372391.

It is an arithmetic number, because the mean of its divisors is an integer number (91741320).

Almost surely, 2^1275109960 is an apocalyptic number.

1275109960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275109960 is an abundant number, since it is smaller than the sum of its proper divisors (1660612280).

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

1275109960 is a wasteful number, since it uses less digits than its factorization.

1275109960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741397 (or 741393 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 1275109960 is about 35708.6818574979. The cubic root of 1275109960 is about 1084.3826143524.

The spelling of 1275109960 in words is "one billion, two hundred seventy-five million, one hundred nine thousand, nine hundred sixty".