133224451 has 2 divisors, whose sum is σ = 133224452. Its totient is φ = 133224450.

The previous prime is 133224439. The next prime is 133224467. The reversal of 133224451 is 154422331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133224451 - 2⁷ = 133224323 is a prime.

It is not a weakly prime, because it can be changed into another prime (133224551) 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, 66612225 + 66612226.

It is an arithmetic number, because the mean of its divisors is an integer number (66612226).

Almost surely, 2^133224451 is an apocalyptic number.

133224451 is a deficient number, since it is larger than the sum of its proper divisors (1).

133224451 is an equidigital number, since it uses as much as digits as its factorization.

133224451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 133224451 is about 11542.2896775293. The cubic root of 133224451 is about 510.7338544598.

Adding to 133224451 its reverse (154422331), we get a palindrome (287646782).

The spelling of 133224451 in words is "one hundred thirty-three million, two hundred twenty-four thousand, four hundred fifty-one".