146224069 has 2 divisors, whose sum is σ = 146224070. Its totient is φ = 146224068.

The previous prime is 146224033. The next prime is 146224079. The reversal of 146224069 is 960422641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139004100 + 7219969 = 11790^2 + 2687^2 .

It is a cyclic number.

It is not a de Polignac number, because 146224069 - 2¹³ = 146215877 is a prime.

It is a super-2 number, since 2×146224069² = 42762956709833522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146224009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73112034 + 73112035.

It is an arithmetic number, because the mean of its divisors is an integer number (73112035).

Almost surely, 2^146224069 is an apocalyptic number.

It is an amenable number.

146224069 is a deficient number, since it is larger than the sum of its proper divisors (1).

146224069 is an equidigital number, since it uses as much as digits as its factorization.

146224069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 146224069 is about 12092.3144600196. The cubic root of 146224069 is about 526.8329809540.

The spelling of 146224069 in words is "one hundred forty-six million, two hundred twenty-four thousand, sixty-nine".