148643149 has 2 divisors, whose sum is σ = 148643150. Its totient is φ = 148643148.

The previous prime is 148643141. The next prime is 148643221. The reversal of 148643149 is 941346841.

148643149 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., 146240649 + 2402500 = 12093^2 + 1550^2 .

It is a cyclic number.

It is not a de Polignac number, because 148643149 - 2³ = 148643141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148643141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74321574 + 74321575.

It is an arithmetic number, because the mean of its divisors is an integer number (74321575).

Almost surely, 2^148643149 is an apocalyptic number.

It is an amenable number.

148643149 is a deficient number, since it is larger than the sum of its proper divisors (1).

148643149 is an equidigital number, since it uses as much as digits as its factorization.

148643149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 148643149 is about 12191.9296667919. The cubic root of 148643149 is about 529.7223524994.

The spelling of 148643149 in words is "one hundred forty-eight million, six hundred forty-three thousand, one hundred forty-nine".