1172657159 has 2 divisors, whose sum is σ = 1172657160. Its totient is φ = 1172657158.

The previous prime is 1172657149. The next prime is 1172657203. The reversal of 1172657159 is 9517562711.

It is an a-pointer prime, because the next prime (1172657203) can be obtained adding 1172657159 to its sum of digits (44).

It is a weak prime.

It is an emirp because it is prime and its reverse (9517562711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1172657159 - 2¹² = 1172653063 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172657149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586328579 + 586328580.

It is an arithmetic number, because the mean of its divisors is an integer number (586328580).

Almost surely, 2^1172657159 is an apocalyptic number.

1172657159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172657159 is an equidigital number, since it uses as much as digits as its factorization.

1172657159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 44.

The square root of 1172657159 is about 34244.0821018756. The cubic root of 1172657159 is about 1054.5253389105.

The spelling of 1172657159 in words is "one billion, one hundred seventy-two million, six hundred fifty-seven thousand, one hundred fifty-nine".