133224493 has 2 divisors, whose sum is σ = 133224494. Its totient is φ = 133224492.

The previous prime is 133224479. The next prime is 133224499. The reversal of 133224493 is 394422331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125507209 + 7717284 = 11203^2 + 2778^2 .

It is a cyclic number.

It is not a de Polignac number, because 133224493 - 2²⁵ = 99670061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133224499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66612246 + 66612247.

It is an arithmetic number, because the mean of its divisors is an integer number (66612247).

Almost surely, 2^133224493 is an apocalyptic number.

It is an amenable number.

133224493 is a deficient number, since it is larger than the sum of its proper divisors (1).

133224493 is an equidigital number, since it uses as much as digits as its factorization.

133224493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 133224493 is about 11542.2914969256. The cubic root of 133224493 is about 510.7339081307.

The spelling of 133224493 in words is "one hundred thirty-three million, two hundred twenty-four thousand, four hundred ninety-three".