152216917 has 2 divisors, whose sum is σ = 152216918. Its totient is φ = 152216916.

The previous prime is 152216903. The next prime is 152216951. The reversal of 152216917 is 719612251.

It is an a-pointer prime, because the next prime (152216951) can be obtained adding 152216917 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95531076 + 56685841 = 9774^2 + 7529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152216917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152216957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76108458 + 76108459.

It is an arithmetic number, because the mean of its divisors is an integer number (76108459).

Almost surely, 2^152216917 is an apocalyptic number.

It is an amenable number.

152216917 is a deficient number, since it is larger than the sum of its proper divisors (1).

152216917 is an equidigital number, since it uses as much as digits as its factorization.

152216917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 34.

The square root of 152216917 is about 12337.6220156074. The cubic root of 152216917 is about 533.9340782338.

The spelling of 152216917 in words is "one hundred fifty-two million, two hundred sixteen thousand, nine hundred seventeen".