1173321297 has 6 divisors (see below), whose sum is σ = 1694797442. Its totient is φ = 782214192.

The previous prime is 1173321229. The next prime is 1173321371. The reversal of 1173321297 is 7921233711.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1123322256 + 49999041 = 33516^2 + 7071^2 .

It is not a de Polignac number, because 1173321297 - 2⁷ = 1173321169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1173321217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65184508 + ... + 65184525.

Almost surely, 2^1173321297 is an apocalyptic number.

It is an amenable number.

1173321297 is a deficient number, since it is larger than the sum of its proper divisors (521476145).

1173321297 is a wasteful number, since it uses less digits than its factorization.

1173321297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130369039 (or 130369036 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 1173321297 is about 34253.7778500416. Note that the first 3 decimals coincide. The cubic root of 1173321297 is about 1054.7243792326.

The spelling of 1173321297 in words is "one billion, one hundred seventy-three million, three hundred twenty-one thousand, two hundred ninety-seven".