146722253 has 2 divisors, whose sum is σ = 146722254. Its totient is φ = 146722252.

The previous prime is 146722207. The next prime is 146722271. The reversal of 146722253 is 352227641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134977924 + 11744329 = 11618^2 + 3427^2 .

It is a cyclic number.

It is not a de Polignac number, because 146722253 - 2¹⁰ = 146721229 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146722283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73361126 + 73361127.

It is an arithmetic number, because the mean of its divisors is an integer number (73361127).

Almost surely, 2^146722253 is an apocalyptic number.

It is an amenable number.

146722253 is a deficient number, since it is larger than the sum of its proper divisors (1).

146722253 is an equidigital number, since it uses as much as digits as its factorization.

146722253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 146722253 is about 12112.8961441928. The cubic root of 146722253 is about 527.4306077343.

Adding to 146722253 its reverse (352227641), we get a palindrome (498949894).

The spelling of 146722253 in words is "one hundred forty-six million, seven hundred twenty-two thousand, two hundred fifty-three".