1156612117 has 2 divisors, whose sum is σ = 1156612118. Its totient is φ = 1156612116.

The previous prime is 1156612097. The next prime is 1156612129. The reversal of 1156612117 is 7112166511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1156612081 + 36 = 34009^2 + 6^2 .

It is an emirp because it is prime and its reverse (7112166511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1156612117 - 2¹¹ = 1156610069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1156612147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578306058 + 578306059.

It is an arithmetic number, because the mean of its divisors is an integer number (578306059).

Almost surely, 2^1156612117 is an apocalyptic number.

It is an amenable number.

1156612117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156612117 is an equidigital number, since it uses as much as digits as its factorization.

1156612117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 31.

The square root of 1156612117 is about 34009.0005292717. Note that the first 3 decimals coincide. The cubic root of 1156612117 is about 1049.6936723941.

Adding to 1156612117 its reverse (7112166511), we get a palindrome (8268778628).

The spelling of 1156612117 in words is "one billion, one hundred fifty-six million, six hundred twelve thousand, one hundred seventeen".