394118147 has 2 divisors, whose sum is σ = 394118148. Its totient is φ = 394118146.

The previous prime is 394118143. The next prime is 394118201. The reversal of 394118147 is 741811493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 394118147 - 2² = 394118143 is a prime.

It is a super-2 number, since 2×394118147² = 310658227589427218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 394118147.

It is not a weakly prime, because it can be changed into another prime (394118143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197059073 + 197059074.

It is an arithmetic number, because the mean of its divisors is an integer number (197059074).

Almost surely, 2^394118147 is an apocalyptic number.

394118147 is a deficient number, since it is larger than the sum of its proper divisors (1).

394118147 is an equidigital number, since it uses as much as digits as its factorization.

394118147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 394118147 is about 19852.4090981422. The cubic root of 394118147 is about 733.1769631928.

The spelling of 394118147 in words is "three hundred ninety-four million, one hundred eighteen thousand, one hundred forty-seven".