394540127 has 2 divisors, whose sum is σ = 394540128. Its totient is φ = 394540126.

The previous prime is 394540117. The next prime is 394540147. The reversal of 394540127 is 721045493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 394540127 - 2²⁰ = 393491551 is a prime.

It is a super-2 number, since 2×394540127² = 311323823626352258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394540117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197270063 + 197270064.

It is an arithmetic number, because the mean of its divisors is an integer number (197270064).

Almost surely, 2^394540127 is an apocalyptic number.

394540127 is a deficient number, since it is larger than the sum of its proper divisors (1).

394540127 is an equidigital number, since it uses as much as digits as its factorization.

394540127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 394540127 is about 19863.0341841321. The cubic root of 394540127 is about 733.4385392909.

The spelling of 394540127 in words is "three hundred ninety-four million, five hundred forty thousand, one hundred twenty-seven".