148842689 has 2 divisors, whose sum is σ = 148842690. Its totient is φ = 148842688.

The previous prime is 148842679. The next prime is 148842697. The reversal of 148842689 is 986248841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82664464 + 66178225 = 9092^2 + 8135^2 .

It is a cyclic number.

It is not a de Polignac number, because 148842689 - 2⁸ = 148842433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148842619) 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, 74421344 + 74421345.

It is an arithmetic number, because the mean of its divisors is an integer number (74421345).

Almost surely, 2^148842689 is an apocalyptic number.

It is an amenable number.

148842689 is a deficient number, since it is larger than the sum of its proper divisors (1).

148842689 is an equidigital number, since it uses as much as digits as its factorization.

148842689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 50.

The square root of 148842689 is about 12200.1102044203. The cubic root of 148842689 is about 529.9592813146.

The spelling of 148842689 in words is "one hundred forty-eight million, eight hundred forty-two thousand, six hundred eighty-nine".