146968189 has 2 divisors, whose sum is σ = 146968190. Its totient is φ = 146968188.

The previous prime is 146968177. The next prime is 146968193. The reversal of 146968189 is 981869641.

146968189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110607289 + 36360900 = 10517^2 + 6030^2 .

It is an emirp because it is prime and its reverse (981869641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146968189 - 2⁷ = 146968061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146968889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73484094 + 73484095.

It is an arithmetic number, because the mean of its divisors is an integer number (73484095).

Almost surely, 2^146968189 is an apocalyptic number.

It is an amenable number.

146968189 is a deficient number, since it is larger than the sum of its proper divisors (1).

146968189 is an equidigital number, since it uses as much as digits as its factorization.

146968189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 52.

The square root of 146968189 is about 12123.0437184727. The cubic root of 146968189 is about 527.7251364852.

The spelling of 146968189 in words is "one hundred forty-six million, nine hundred sixty-eight thousand, one hundred eighty-nine".