1442479117 has 2 divisors, whose sum is σ = 1442479118. Its totient is φ = 1442479116.

The previous prime is 1442478997. The next prime is 1442479127. The reversal of 1442479117 is 7119742441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1441796841 + 682276 = 37971^2 + 826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442479117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1442479117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442479127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721239558 + 721239559.

It is an arithmetic number, because the mean of its divisors is an integer number (721239559).

Almost surely, 2^1442479117 is an apocalyptic number.

It is an amenable number.

1442479117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442479117 is an equidigital number, since it uses as much as digits as its factorization.

1442479117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The square root of 1442479117 is about 37979.9831095276. The cubic root of 1442479117 is about 1129.8909015720.

The spelling of 1442479117 in words is "one billion, four hundred forty-two million, four hundred seventy-nine thousand, one hundred seventeen".