146222489 has 16 divisors (see below), whose sum is σ = 171494400. Its totient is φ = 122063760.

The previous prime is 146222467. The next prime is 146222497. The reversal of 146222489 is 984222641.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-146222489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146222449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179894 + ... + 180704.

It is an arithmetic number, because the mean of its divisors is an integer number (10718400).

Almost surely, 2^146222489 is an apocalyptic number.

It is an amenable number.

146222489 is a deficient number, since it is larger than the sum of its proper divisors (25271911).

146222489 is an equidigital number, since it uses as much as digits as its factorization.

146222489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460.

The product of its digits is 55296, while the sum is 38.

The square root of 146222489 is about 12092.2491290909. The cubic root of 146222489 is about 526.8310834116.

The spelling of 146222489 in words is "one hundred forty-six million, two hundred twenty-two thousand, four hundred eighty-nine".