297272072945 has 4 divisors (see below), whose sum is σ = 356726487540. Its totient is φ = 237817658352.

The previous prime is 297272072941. The next prime is 297272072947. The reversal of 297272072945 is 549270272792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151253321569 + 146018751376 = 388913^2 + 382124^2 .

It is a cyclic number.

It is not a de Polignac number, because 297272072945 - 2² = 297272072941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (297272072941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29727207290 + ... + 29727207299.

It is an arithmetic number, because the mean of its divisors is an integer number (89181621885).

Almost surely, 2^297272072945 is an apocalyptic number.

It is an amenable number.

297272072945 is a deficient number, since it is larger than the sum of its proper divisors (59454414595).

297272072945 is an equidigital number, since it uses as much as digits as its factorization.

297272072945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59454414594.

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 297272072945 in words is "two hundred ninety-seven billion, two hundred seventy-two million, seventy-two thousand, nine hundred forty-five".