146820319 has 2 divisors, whose sum is σ = 146820320. Its totient is φ = 146820318.

The previous prime is 146820299. The next prime is 146820337. The reversal of 146820319 is 913028641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146820319 - 2⁵ = 146820287 is a prime.

It is a super-2 number, since 2×146820319² = 43112412142523522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146820419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73410159 + 73410160.

It is an arithmetic number, because the mean of its divisors is an integer number (73410160).

Almost surely, 2^146820319 is an apocalyptic number.

146820319 is a deficient number, since it is larger than the sum of its proper divisors (1).

146820319 is an equidigital number, since it uses as much as digits as its factorization.

146820319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 146820319 is about 12116.9434677232. The cubic root of 146820319 is about 527.5480893244.

The spelling of 146820319 in words is "one hundred forty-six million, eight hundred twenty thousand, three hundred nineteen".