1442859091 has 2 divisors, whose sum is σ = 1442859092. Its totient is φ = 1442859090.

The previous prime is 1442859079. The next prime is 1442859151. The reversal of 1442859091 is 1909582441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1442859091 - 2¹¹ = 1442857043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442859001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721429545 + 721429546.

It is an arithmetic number, because the mean of its divisors is an integer number (721429546).

Almost surely, 2^1442859091 is an apocalyptic number.

1442859091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442859091 is an equidigital number, since it uses as much as digits as its factorization.

1442859091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 1442859091 is about 37984.9850730522. The cubic root of 1442859091 is about 1129.9901038108.

The spelling of 1442859091 in words is "one billion, four hundred forty-two million, eight hundred fifty-nine thousand, ninety-one".