1442442451 has 2 divisors, whose sum is σ = 1442442452. Its totient is φ = 1442442450.

The previous prime is 1442442427. The next prime is 1442442457. The reversal of 1442442451 is 1542442441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1442442451 - 2⁹ = 1442441939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442442457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721221225 + 721221226.

It is an arithmetic number, because the mean of its divisors is an integer number (721221226).

Almost surely, 2^1442442451 is an apocalyptic number.

1442442451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442442451 is an equidigital number, since it uses as much as digits as its factorization.

1442442451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20480, while the sum is 31.

The square root of 1442442451 is about 37979.5004048237. The cubic root of 1442442451 is about 1129.8813280236.

Adding to 1442442451 its reverse (1542442441), we get a palindrome (2984884892).

The spelling of 1442442451 in words is "one billion, four hundred forty-two million, four hundred forty-two thousand, four hundred fifty-one".