297137945 has 32 divisors (see below), whose sum is σ = 398684160. Its totient is φ = 211115520.

The previous prime is 297137933. The next prime is 297137969. The reversal of 297137945 is 549731792.

It is not a de Polignac number, because 297137945 - 2¹⁶ = 297072409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 297137945.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 481277 + ... + 481893.

It is an arithmetic number, because the mean of its divisors is an integer number (12458880).

Almost surely, 2^297137945 is an apocalyptic number.

It is an amenable number.

297137945 is a deficient number, since it is larger than the sum of its proper divisors (101546215).

297137945 is a wasteful number, since it uses less digits than its factorization.

297137945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its digits is 476280, while the sum is 47.

The square root of 297137945 is about 17237.6896653815. The cubic root of 297137945 is about 667.2973064465.

The spelling of 297137945 in words is "two hundred ninety-seven million, one hundred thirty-seven thousand, nine hundred forty-five".