1442056249 has 2 divisors, whose sum is σ = 1442056250. Its totient is φ = 1442056248.

The previous prime is 1442056247. The next prime is 1442056261. The reversal of 1442056249 is 9426502441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1421290000 + 20766249 = 37700^2 + 4557^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442056249 - 2¹ = 1442056247 is a prime.

Together with 1442056247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1442056247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721028124 + 721028125.

It is an arithmetic number, because the mean of its divisors is an integer number (721028125).

Almost surely, 2^1442056249 is an apocalyptic number.

It is an amenable number.

1442056249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442056249 is an equidigital number, since it uses as much as digits as its factorization.

1442056249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1442056249 is about 37974.4157163741. The cubic root of 1442056249 is about 1129.7804802386.

The spelling of 1442056249 in words is "one billion, four hundred forty-two million, fifty-six thousand, two hundred forty-nine".