7105617157 has 2 divisors, whose sum is σ = 7105617158. Its totient is φ = 7105617156.

The previous prime is 7105617059. The next prime is 7105617179. The reversal of 7105617157 is 7517165017.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5775848001 + 1329769156 = 75999^2 + 36466^2 .

It is an emirp because it is prime and its reverse (7517165017) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7105617157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7105617257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3552808578 + 3552808579.

It is an arithmetic number, because the mean of its divisors is an integer number (3552808579).

Almost surely, 2^7105617157 is an apocalyptic number.

It is an amenable number.

7105617157 is a deficient number, since it is larger than the sum of its proper divisors (1).

7105617157 is an equidigital number, since it uses as much as digits as its factorization.

7105617157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51450, while the sum is 40.

The square root of 7105617157 is about 84294.8228362810. The cubic root of 7105617157 is about 1922.5040711763.

The spelling of 7105617157 in words is "seven billion, one hundred five million, six hundred seventeen thousand, one hundred fifty-seven".