1297145675 has 24 divisors (see below), whose sum is σ = 1934995200. Its totient is φ = 842654880.

The previous prime is 1297145653. The next prime is 1297145677. The reversal of 1297145675 is 5765417921.

It is not a de Polignac number, because 1297145675 - 2²⁸ = 1028710219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1297145677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191735 + ... + 198384.

It is an arithmetic number, because the mean of its divisors is an integer number (80624800).

Almost surely, 2^1297145675 is an apocalyptic number.

1297145675 is a deficient number, since it is larger than the sum of its proper divisors (637849525).

1297145675 is a wasteful number, since it uses less digits than its factorization.

1297145675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390155 (or 390150 counting only the distinct ones).

The product of its digits is 529200, while the sum is 47.

The square root of 1297145675 is about 36015.9086377118. The cubic root of 1297145675 is about 1090.5935310827.

The spelling of 1297145675 in words is "one billion, two hundred ninety-seven million, one hundred forty-five thousand, six hundred seventy-five".