1297255275 has 18 divisors (see below), whose sum is σ = 2323528740. Its totient is φ = 691869360.

The previous prime is 1297255249. The next prime is 1297255307. The reversal of 1297255275 is 5725527921.

1297255275 is a `hidden beast` number, since 1 + 2 + 97 + 2 + 552 + 7 + 5 = 666.

It is not a de Polignac number, because 1297255275 - 2⁷ = 1297255147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1297255275.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2882565 + ... + 2883014.

It is an arithmetic number, because the mean of its divisors is an integer number (129084930).

Almost surely, 2^1297255275 is an apocalyptic number.

1297255275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1297255275 is a deficient number, since it is larger than the sum of its proper divisors (1026273465).

1297255275 is a wasteful number, since it uses less digits than its factorization.

1297255275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765595 (or 5765587 counting only the distinct ones).

The product of its digits is 441000, while the sum is 45.

The square root of 1297255275 is about 36017.4301554123. The cubic root of 1297255275 is about 1090.6242461332.

The spelling of 1297255275 in words is "one billion, two hundred ninety-seven million, two hundred fifty-five thousand, two hundred seventy-five".