1442979959 has 2 divisors, whose sum is σ = 1442979960. Its totient is φ = 1442979958.

The previous prime is 1442979917. The next prime is 1442979991. The reversal of 1442979959 is 9599792441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1442979959 - 2²⁰ = 1441931383 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1442979898 and 1442979907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442979059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721489979 + 721489980.

It is an arithmetic number, because the mean of its divisors is an integer number (721489980).

Almost surely, 2^1442979959 is an apocalyptic number.

1442979959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442979959 is an equidigital number, since it uses as much as digits as its factorization.

1442979959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7348320, while the sum is 59.

The square root of 1442979959 is about 37986.5760368054. The cubic root of 1442979959 is about 1130.0216559402.

The spelling of 1442979959 in words is "one billion, four hundred forty-two million, nine hundred seventy-nine thousand, nine hundred fifty-nine".