1442051969 has 2 divisors, whose sum is σ = 1442051970. Its totient is φ = 1442051968.

The previous prime is 1442051939. The next prime is 1442051983. The reversal of 1442051969 is 9691502441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1161991744 + 280060225 = 34088^2 + 16735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442051969 - 2¹⁶ = 1441986433 is a prime.

It is a super-2 number, since 2×1442051969² = 4159027762593553922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1442051909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721025984 + 721025985.

It is an arithmetic number, because the mean of its divisors is an integer number (721025985).

Almost surely, 2^1442051969 is an apocalyptic number.

It is an amenable number.

1442051969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442051969 is an equidigital number, since it uses as much as digits as its factorization.

1442051969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1442051969 is about 37974.3593626015. The cubic root of 1442051969 is about 1129.7793625140.

The spelling of 1442051969 in words is "one billion, four hundred forty-two million, fifty-one thousand, nine hundred sixty-nine".