1172313097 has 4 divisors (see below), whose sum is σ = 1173431700. Its totient is φ = 1171194496.

The previous prime is 1172313071. The next prime is 1172313119. The reversal of 1172313097 is 7903132711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7903132711 = 223 ⋅35440057.

It can be written as a sum of positive squares in 2 ways, for example, as 414081801 + 758231296 = 20349^2 + 27536^2 .

It is a cyclic number.

It is not a de Polignac number, because 1172313097 - 2⁷ = 1172312969 is a prime.

It is a super-3 number, since 3×1172313097³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1172314097) 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, 557728 + ... + 559825.

It is an arithmetic number, because the mean of its divisors is an integer number (293357925).

Almost surely, 2^1172313097 is an apocalyptic number.

It is an amenable number.

1172313097 is a deficient number, since it is larger than the sum of its proper divisors (1118603).

1172313097 is a wasteful number, since it uses less digits than its factorization.

1172313097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118602.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 1172313097 is about 34239.0580623942. The cubic root of 1172313097 is about 1054.4221949283.

The spelling of 1172313097 in words is "one billion, one hundred seventy-two million, three hundred thirteen thousand, ninety-seven".