146143289 has 2 divisors, whose sum is σ = 146143290. Its totient is φ = 146143288.

The previous prime is 146143279. The next prime is 146143321. The reversal of 146143289 is 982341641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145998889 + 144400 = 12083^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 146143289 - 2¹² = 146139193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146143279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73071644 + 73071645.

It is an arithmetic number, because the mean of its divisors is an integer number (73071645).

Almost surely, 2^146143289 is an apocalyptic number.

It is an amenable number.

146143289 is a deficient number, since it is larger than the sum of its proper divisors (1).

146143289 is an equidigital number, since it uses as much as digits as its factorization.

146143289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 146143289 is about 12088.9738605061. The cubic root of 146143289 is about 526.7359485759.

The spelling of 146143289 in words is "one hundred forty-six million, one hundred forty-three thousand, two hundred eighty-nine".