142441427 has 2 divisors, whose sum is σ = 142441428. Its totient is φ = 142441426.

The previous prime is 142441391. The next prime is 142441447. The reversal of 142441427 is 724144241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142441427 - 2⁸ = 142441171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142441427.

It is not a weakly prime, because it can be changed into another prime (142441447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71220713 + 71220714.

It is an arithmetic number, because the mean of its divisors is an integer number (71220714).

Almost surely, 2^142441427 is an apocalyptic number.

142441427 is a deficient number, since it is larger than the sum of its proper divisors (1).

142441427 is an equidigital number, since it uses as much as digits as its factorization.

142441427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 29.

The square root of 142441427 is about 11934.8827811588. The cubic root of 142441427 is about 522.2503887747.

Adding to 142441427 its reverse (724144241), we get a palindrome (866585668).

The spelling of 142441427 in words is "one hundred forty-two million, four hundred forty-one thousand, four hundred twenty-seven".