1442011217 has 2 divisors, whose sum is σ = 1442011218. Its totient is φ = 1442011216.

The previous prime is 1442011187. The next prime is 1442011223. The reversal of 1442011217 is 7121102441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 924403216 + 517608001 = 30404^2 + 22751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442011217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1442011192 and 1442011201.

It is not a weakly prime, because it can be changed into another prime (1442011297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721005608 + 721005609.

It is an arithmetic number, because the mean of its divisors is an integer number (721005609).

Almost surely, 2^1442011217 is an apocalyptic number.

It is an amenable number.

1442011217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442011217 is an equidigital number, since it uses as much as digits as its factorization.

1442011217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1442011217 is about 37973.8227862300. The cubic root of 1442011217 is about 1129.7687199937.

Adding to 1442011217 its reverse (7121102441), we get a palindrome (8563113658).

The spelling of 1442011217 in words is "one billion, four hundred forty-two million, eleven thousand, two hundred seventeen".