1022143259 has 2 divisors, whose sum is σ = 1022143260. Its totient is φ = 1022143258.

The previous prime is 1022143229. The next prime is 1022143261. The reversal of 1022143259 is 9523412201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022143259 is a prime.

Together with 1022143261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1022143229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511071629 + 511071630.

It is an arithmetic number, because the mean of its divisors is an integer number (511071630).

Almost surely, 2^1022143259 is an apocalyptic number.

1022143259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022143259 is an equidigital number, since it uses as much as digits as its factorization.

1022143259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1022143259 is about 31970.9752588187. The cubic root of 1022143259 is about 1007.3272663701.

The spelling of 1022143259 in words is "one billion, twenty-two million, one hundred forty-three thousand, two hundred fifty-nine".