297148394 has 12 divisors (see below), whose sum is σ = 450811014. Its totient is φ = 146896992.

The previous prime is 297148393. The next prime is 297148403. The reversal of 297148394 is 493841792.

It can be written as a sum of positive squares in 3 ways, for example, as 181306225 + 115842169 = 13465^2 + 10763^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (297148393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6464 + ... + 25220.

Almost surely, 2^297148394 is an apocalyptic number.

297148394 is a deficient number, since it is larger than the sum of its proper divisors (153662620).

297148394 is an equidigital number, since it uses as much as digits as its factorization.

297148394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18937 (or 18848 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 297148394 is about 17237.9927485772. The cubic root of 297148394 is about 667.3051282994.

The spelling of 297148394 in words is "two hundred ninety-seven million, one hundred forty-eight thousand, three hundred ninety-four".