146224213 has 2 divisors, whose sum is σ = 146224214. Its totient is φ = 146224212.

The previous prime is 146224201. The next prime is 146224223. The reversal of 146224213 is 312422641.

It is a happy number.

146224213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73667889 + 72556324 = 8583^2 + 8518^2 .

It is a cyclic number.

It is not a de Polignac number, because 146224213 - 2¹⁷ = 146093141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146224223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73112106 + 73112107.

It is an arithmetic number, because the mean of its divisors is an integer number (73112107).

Almost surely, 2^146224213 is an apocalyptic number.

It is an amenable number.

146224213 is a deficient number, since it is larger than the sum of its proper divisors (1).

146224213 is an equidigital number, since it uses as much as digits as its factorization.

146224213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 146224213 is about 12092.3204142133. The cubic root of 146224213 is about 526.8331538939.

Adding to 146224213 its reverse (312422641), we get a palindrome (458646854).

The spelling of 146224213 in words is "one hundred forty-six million, two hundred twenty-four thousand, two hundred thirteen".