1275223585000 has 40 divisors (see below), whose sum is σ = 2987848871370. Its totient is φ = 510089432000.

The previous prime is 1275223584983. The next prime is 1275223585033. The reversal of 1275223585000 is 5853225721.

It can be written as a sum of positive squares in 5 ways, for example, as 31333956196 + 1243889628804 = 177014^2 + 1115298^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 9 ways as a sum of consecutive naturals, for example, 127517359 + ... + 127527358.

Almost surely, 2^{1275223585000} is an apocalyptic number.

1275223585000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275223585000 is an abundant number, since it is smaller than the sum of its proper divisors (1712625286370).

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

1275223585000 is an equidigital number, since it uses as much as digits as its factorization.

1275223585000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255044743 (or 255044724 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 1275223585000 in words is "one trillion, two hundred seventy-five billion, two hundred twenty-three million, five hundred eighty-five thousand".