442135451 has 2 divisors, whose sum is σ = 442135452. Its totient is φ = 442135450.

The previous prime is 442135427. The next prime is 442135469. The reversal of 442135451 is 154531244.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442135451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442135411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221067725 + 221067726.

It is an arithmetic number, because the mean of its divisors is an integer number (221067726).

Almost surely, 2^442135451 is an apocalyptic number.

442135451 is a deficient number, since it is larger than the sum of its proper divisors (1).

442135451 is an equidigital number, since it uses as much as digits as its factorization.

442135451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 29.

The square root of 442135451 is about 21027.0171683955. The cubic root of 442135451 is about 761.8189642792.

Adding to 442135451 its reverse (154531244), we get a palindrome (596666695).

The spelling of 442135451 in words is "four hundred forty-two million, one hundred thirty-five thousand, four hundred fifty-one".