1275970000 has 50 divisors (see below), whose sum is σ = 3089275178. Its totient is φ = 510384000.

The previous prime is 1275969997. The next prime is 1275970019. The reversal of 1275970000 is 795721.

It can be written as a sum of positive squares in 5 ways, for example, as 952833424 + 323136576 = 30868^2 + 17976^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

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, 53799 + ... + 73798.

Almost surely, 2^1275970000 is an apocalyptic number.

1275970000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275970000 is an abundant number, since it is smaller than the sum of its proper divisors (1813305178).

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

1275970000 is an equidigital number, since it uses as much as digits as its factorization.

1275970000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127625 (or 127604 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 1275970000 is about 35720.7222771321. The cubic root of 1275970000 is about 1084.6263587756.

The spelling of 1275970000 in words is "one billion, two hundred seventy-five million, nine hundred seventy thousand".