148912889 has 2 divisors, whose sum is σ = 148912890. Its totient is φ = 148912888.

The previous prime is 148912853. The next prime is 148912963. The reversal of 148912889 is 988219841.

It is a happy number.

148912889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89113600 + 59799289 = 9440^2 + 7733^2 .

It is a cyclic number.

It is not a de Polignac number, because 148912889 - 2²⁴ = 132135673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148912849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74456444 + 74456445.

It is an arithmetic number, because the mean of its divisors is an integer number (74456445).

Almost surely, 2^148912889 is an apocalyptic number.

It is an amenable number.

148912889 is a deficient number, since it is larger than the sum of its proper divisors (1).

148912889 is an equidigital number, since it uses as much as digits as its factorization.

148912889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 50.

The square root of 148912889 is about 12202.9868884630. The cubic root of 148912889 is about 530.0425846879.

The spelling of 148912889 in words is "one hundred forty-eight million, nine hundred twelve thousand, eight hundred eighty-nine".