148915717 has 2 divisors, whose sum is σ = 148915718. Its totient is φ = 148915716.

The previous prime is 148915709. The next prime is 148915727. The reversal of 148915717 is 717519841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111534721 + 37380996 = 10561^2 + 6114^2 .

It is a cyclic number.

It is not a de Polignac number, because 148915717 - 2³ = 148915709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148915727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74457858 + 74457859.

It is an arithmetic number, because the mean of its divisors is an integer number (74457859).

Almost surely, 2^148915717 is an apocalyptic number.

It is an amenable number.

148915717 is a deficient number, since it is larger than the sum of its proper divisors (1).

148915717 is an equidigital number, since it uses as much as digits as its factorization.

148915717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 43.

The square root of 148915717 is about 12203.1027611833. The cubic root of 148915717 is about 530.0459400074.

The spelling of 148915717 in words is "one hundred forty-eight million, nine hundred fifteen thousand, seven hundred seventeen".