1442244253 has 2 divisors, whose sum is σ = 1442244254. Its totient is φ = 1442244252.

The previous prime is 1442244239. The next prime is 1442244311. The reversal of 1442244253 is 3524422441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1163287449 + 278956804 = 34107^2 + 16702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442244253 - 2²¹ = 1440147101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442644253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721122126 + 721122127.

It is an arithmetic number, because the mean of its divisors is an integer number (721122127).

Almost surely, 2^1442244253 is an apocalyptic number.

It is an amenable number.

1442244253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442244253 is an equidigital number, since it uses as much as digits as its factorization.

1442244253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30720, while the sum is 31.

The square root of 1442244253 is about 37976.8910391570. The cubic root of 1442244253 is about 1129.8295754154.

Adding to 1442244253 its reverse (3524422441), we get a palindrome (4966666694).

The spelling of 1442244253 in words is "one billion, four hundred forty-two million, two hundred forty-four thousand, two hundred fifty-three".