133012433 has 2 divisors, whose sum is σ = 133012434. Its totient is φ = 133012432.

The previous prime is 133012421. The next prime is 133012469. The reversal of 133012433 is 334210331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132894784 + 117649 = 11528^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 133012433 - 2⁴ = 133012417 is a prime.

It is not a weakly prime, because it can be changed into another prime (133012133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66506216 + 66506217.

It is an arithmetic number, because the mean of its divisors is an integer number (66506217).

Almost surely, 2^133012433 is an apocalyptic number.

It is an amenable number.

133012433 is a deficient number, since it is larger than the sum of its proper divisors (1).

133012433 is an equidigital number, since it uses as much as digits as its factorization.

133012433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 133012433 is about 11533.1016209864. The cubic root of 133012433 is about 510.4627774338.

Adding to 133012433 its reverse (334210331), we get a palindrome (467222764).

The spelling of 133012433 in words is "one hundred thirty-three million, twelve thousand, four hundred thirty-three".