1173275997 has 8 divisors (see below), whose sum is σ = 1618311840. Its totient is φ = 755212080.

The previous prime is 1173275981. The next prime is 1173276019. The reversal of 1173275997 is 7995723711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1173275997 - 2⁴ = 1173275981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173275797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6742879 + ... + 6743052.

It is an arithmetic number, because the mean of its divisors is an integer number (202288980).

Almost surely, 2^1173275997 is an apocalyptic number.

It is an amenable number.

1173275997 is a deficient number, since it is larger than the sum of its proper divisors (445035843).

1173275997 is a wasteful number, since it uses less digits than its factorization.

1173275997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13485963.

The product of its digits is 833490, while the sum is 51.

The square root of 1173275997 is about 34253.1166027268. The cubic root of 1173275997 is about 1054.7108053350.

The spelling of 1173275997 in words is "one billion, one hundred seventy-three million, two hundred seventy-five thousand, nine hundred ninety-seven".