9138297 has 32 divisors (see below), whose sum is σ = 15078400. Its totient is φ = 4805568.

The previous prime is 9138293. The next prime is 9138323. The reversal of 9138297 is 7928319.

9138297 = 704² + 705² + ... + 721².

9138297 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9138297 - 2² = 9138293 is a prime.

9138297 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9138293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14454 + ... + 15072.

It is an arithmetic number, because the mean of its divisors is an integer number (471200).

Almost surely, 2^9138297 is an apocalyptic number.

It is an amenable number.

9138297 is a deficient number, since it is larger than the sum of its proper divisors (5940103).

9138297 is a wasteful number, since it uses less digits than its factorization.

9138297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its digits is 27216, while the sum is 39.

The square root of 9138297 is about 3022.9616272788. The cubic root of 9138297 is about 209.0684131552.

The spelling of 9138297 in words is "nine million, one hundred thirty-eight thousand, two hundred ninety-seven".