148557089 has 2 divisors, whose sum is σ = 148557090. Its totient is φ = 148557088.

The previous prime is 148557047. The next prime is 148557091. The reversal of 148557089 is 980755841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74304400 + 74252689 = 8620^2 + 8617^2 .

It is a cyclic number.

It is not a de Polignac number, because 148557089 - 2⁸ = 148556833 is a prime.

Together with 148557091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148557289) 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, 74278544 + 74278545.

It is an arithmetic number, because the mean of its divisors is an integer number (74278545).

Almost surely, 2^148557089 is an apocalyptic number.

It is an amenable number.

148557089 is a deficient number, since it is larger than the sum of its proper divisors (1).

148557089 is an equidigital number, since it uses as much as digits as its factorization.

148557089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 148557089 is about 12188.3997719143. The cubic root of 148557089 is about 529.6201015563.

The spelling of 148557089 in words is "one hundred forty-eight million, five hundred fifty-seven thousand, eighty-nine".