133224031 has 2 divisors, whose sum is σ = 133224032. Its totient is φ = 133224030.

The previous prime is 133224017. The next prime is 133224071. The reversal of 133224031 is 130422331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133224031 - 2¹¹ = 133221983 is a prime.

It is a super-2 number, since 2×133224031² = 35497284871777922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133224001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66612015 + 66612016.

It is an arithmetic number, because the mean of its divisors is an integer number (66612016).

Almost surely, 2^133224031 is an apocalyptic number.

133224031 is a deficient number, since it is larger than the sum of its proper divisors (1).

133224031 is an equidigital number, since it uses as much as digits as its factorization.

133224031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133224031 is about 11542.2714835512. The cubic root of 133224031 is about 510.7333177504.

Adding to 133224031 its reverse (130422331), we get a palindrome (263646362).

The spelling of 133224031 in words is "one hundred thirty-three million, two hundred twenty-four thousand, thirty-one".