148988717 has 2 divisors, whose sum is σ = 148988718. Its totient is φ = 148988716.

The previous prime is 148988659. The next prime is 148988737. The reversal of 148988717 is 717889841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109286116 + 39702601 = 10454^2 + 6301^2 .

It is a cyclic number.

It is not a de Polignac number, because 148988717 - 2⁸ = 148988461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148988737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74494358 + 74494359.

It is an arithmetic number, because the mean of its divisors is an integer number (74494359).

Almost surely, 2^148988717 is an apocalyptic number.

It is an amenable number.

148988717 is a deficient number, since it is larger than the sum of its proper divisors (1).

148988717 is an equidigital number, since it uses as much as digits as its factorization.

148988717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 53.

The square root of 148988717 is about 12206.0934372960. The cubic root of 148988717 is about 530.1325371634.

The spelling of 148988717 in words is "one hundred forty-eight million, nine hundred eighty-eight thousand, seven hundred seventeen".