1172896117 has 2 divisors, whose sum is σ = 1172896118. Its totient is φ = 1172896116.

The previous prime is 1172896099. The next prime is 1172896177. The reversal of 1172896117 is 7116982711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1117631761 + 55264356 = 33431^2 + 7434^2 .

It is an emirp because it is prime and its reverse (7116982711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1172896117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172896177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586448058 + 586448059.

It is an arithmetic number, because the mean of its divisors is an integer number (586448059).

Almost surely, 2^1172896117 is an apocalyptic number.

It is an amenable number.

1172896117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172896117 is an equidigital number, since it uses as much as digits as its factorization.

1172896117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 43.

The square root of 1172896117 is about 34247.5709649604. The cubic root of 1172896117 is about 1054.5969626156.

The spelling of 1172896117 in words is "one billion, one hundred seventy-two million, eight hundred ninety-six thousand, one hundred seventeen".