1294022143 has 2 divisors, whose sum is σ = 1294022144. Its totient is φ = 1294022142.

The previous prime is 1294022131. The next prime is 1294022203. The reversal of 1294022143 is 3412204921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1294022143 - 2⁵ = 1294022111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1294022843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647011071 + 647011072.

It is an arithmetic number, because the mean of its divisors is an integer number (647011072).

Almost surely, 2^1294022143 is an apocalyptic number.

1294022143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294022143 is an equidigital number, since it uses as much as digits as its factorization.

1294022143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1294022143 is about 35972.5192751356. The cubic root of 1294022143 is about 1089.7174429624.

The spelling of 1294022143 in words is "one billion, two hundred ninety-four million, twenty-two thousand, one hundred forty-three".