133224445 has 8 divisors (see below), whose sum is σ = 160067160. Its totient is φ = 106447680.

The previous prime is 133224439. The next prime is 133224451. The reversal of 133224445 is 544422331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133224439) and next prime (133224451).

It can be written as a sum of positive squares in 4 ways, for example, as 54848836 + 78375609 = 7406^2 + 8853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133224445 - 2⁷ = 133224317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11926 + ... + 20215.

It is an arithmetic number, because the mean of its divisors is an integer number (20008395).

Almost surely, 2^133224445 is an apocalyptic number.

It is an amenable number.

133224445 is a deficient number, since it is larger than the sum of its proper divisors (26842715).

133224445 is an equidigital number, since it uses as much as digits as its factorization.

133224445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32975.

The product of its digits is 11520, while the sum is 28.

The square root of 133224445 is about 11542.2894176156. The cubic root of 133224445 is about 510.7338467925.

Adding to 133224445 its reverse (544422331), we get a palindrome (677646776).

The spelling of 133224445 in words is "one hundred thirty-three million, two hundred twenty-four thousand, four hundred forty-five".