1394394271 has 2 divisors, whose sum is σ = 1394394272. Its totient is φ = 1394394270.

The previous prime is 1394394263. The next prime is 1394394277. The reversal of 1394394271 is 1724934931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1394394271 - 2³ = 1394394263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1394394277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697197135 + 697197136.

It is an arithmetic number, because the mean of its divisors is an integer number (697197136).

Almost surely, 2^1394394271 is an apocalyptic number.

1394394271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394394271 is an equidigital number, since it uses as much as digits as its factorization.

1394394271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 1394394271 is about 37341.5890261783. The cubic root of 1394394271 is about 1117.1938335837.

The spelling of 1394394271 in words is "one billion, three hundred ninety-four million, three hundred ninety-four thousand, two hundred seventy-one".