146168489 has 2 divisors, whose sum is σ = 146168490. Its totient is φ = 146168488.

The previous prime is 146168483. The next prime is 146168507. The reversal of 146168489 is 984861641.

146168489 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., 137288089 + 8880400 = 11717^2 + 2980^2 .

It is a cyclic number.

It is not a de Polignac number, because 146168489 - 2²⁰ = 145119913 is a prime.

It is not a weakly prime, because it can be changed into another prime (146168483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73084244 + 73084245.

It is an arithmetic number, because the mean of its divisors is an integer number (73084245).

Almost surely, 2^146168489 is an apocalyptic number.

It is an amenable number.

146168489 is a deficient number, since it is larger than the sum of its proper divisors (1).

146168489 is an equidigital number, since it uses as much as digits as its factorization.

146168489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 47.

The square root of 146168489 is about 12090.0160876651. The cubic root of 146168489 is about 526.7662224784.

The spelling of 146168489 in words is "one hundred forty-six million, one hundred sixty-eight thousand, four hundred eighty-nine".