158901317 has 2 divisors, whose sum is σ = 158901318. Its totient is φ = 158901316.

The previous prime is 158901299. The next prime is 158901331. The reversal of 158901317 is 713109851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113081956 + 45819361 = 10634^2 + 6769^2 .

It is an emirp because it is prime and its reverse (713109851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158901317 - 2¹⁰ = 158900293 is a prime.

It is equal to p_8916164 and since 158901317 and 8916164 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158900317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79450658 + 79450659.

It is an arithmetic number, because the mean of its divisors is an integer number (79450659).

Almost surely, 2^158901317 is an apocalyptic number.

It is an amenable number.

158901317 is a deficient number, since it is larger than the sum of its proper divisors (1).

158901317 is an equidigital number, since it uses as much as digits as its factorization.

158901317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 158901317 is about 12605.6065700941. The cubic root of 158901317 is about 541.6380496229.

The spelling of 158901317 in words is "one hundred fifty-eight million, nine hundred one thousand, three hundred seventeen".