1294143 has 4 divisors (see below), whose sum is σ = 1725528. Its totient is φ = 862760.

The previous prime is 1294129. The next prime is 1294169. The reversal of 1294143 is 3414921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1294143 - 2¹⁰ = 1293119 is a prime.

It is a super-2 number, since 2×1294143² = 3349612208898, which contains 22 as substring.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1294103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215688 + ... + 215693.

It is an arithmetic number, because the mean of its divisors is an integer number (431382).

2^1294143 is an apocalyptic number.

1294143 is a deficient number, since it is larger than the sum of its proper divisors (431385).

1294143 is an equidigital number, since it uses as much as digits as its factorization.

1294143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431384.

The product of its digits is 864, while the sum is 24.

The square root of 1294143 is about 1137.6040611742. The cubic root of 1294143 is about 108.9751367132.

The spelling of 1294143 in words is "one million, two hundred ninety-four thousand, one hundred forty-three".