63442133 has 2 divisors, whose sum is σ = 63442134. Its totient is φ = 63442132.

The previous prime is 63442123. The next prime is 63442153. The reversal of 63442133 is 33124436.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61434244 + 2007889 = 7838^2 + 1417^2 .

It is a cyclic number.

It is not a de Polignac number, because 63442133 - 2⁶ = 63442069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63442103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31721066 + 31721067.

It is an arithmetic number, because the mean of its divisors is an integer number (31721067).

Almost surely, 2^63442133 is an apocalyptic number.

It is an amenable number.

63442133 is a deficient number, since it is larger than the sum of its proper divisors (1).

63442133 is an equidigital number, since it uses as much as digits as its factorization.

63442133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 26.

The square root of 63442133 is about 7965.0569991683. The cubic root of 63442133 is about 398.8343837294.

Adding to 63442133 its reverse (33124436), we get a palindrome (96566569).

The spelling of 63442133 in words is "sixty-three million, four hundred forty-two thousand, one hundred thirty-three".