1275325697 has 4 divisors (see below), whose sum is σ = 1299388500. Its totient is φ = 1251262896.

The previous prime is 1275325693. The next prime is 1275325747. The reversal of 1275325697 is 7965235721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7965235721 = 66067 ⋅120563.

It can be written as a sum of positive squares in 2 ways, for example, as 926532721 + 348792976 = 30439^2 + 18676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275325697 - 2² = 1275325693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275325693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12031322 + ... + 12031427.

It is an arithmetic number, because the mean of its divisors is an integer number (324847125).

Almost surely, 2^1275325697 is an apocalyptic number.

It is an amenable number.

1275325697 is a deficient number, since it is larger than the sum of its proper divisors (24062803).

1275325697 is an equidigital number, since it uses as much as digits as its factorization.

1275325697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24062802.

The product of its digits is 793800, while the sum is 47.

The square root of 1275325697 is about 35711.7025217225. The cubic root of 1275325697 is about 1084.4437667934.

The spelling of 1275325697 in words is "one billion, two hundred seventy-five million, three hundred twenty-five thousand, six hundred ninety-seven".