297121 has 4 divisors (see below), whose sum is σ = 324144. Its totient is φ = 270100.

The previous prime is 297113. The next prime is 297133. The reversal of 297121 is 121792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 297121 - 2³ = 297113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 297092 and 297101.

It is not an unprimeable number, because it can be changed into a prime (297151) 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, 13495 + ... + 13516.

It is an arithmetic number, because the mean of its divisors is an integer number (81036).

2²⁹⁷¹²¹ is an apocalyptic number.

It is an amenable number.

297121 is a deficient number, since it is larger than the sum of its proper divisors (27023).

297121 is a wasteful number, since it uses less digits than its factorization.

297121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27022.

The product of its digits is 252, while the sum is 22.

The square root of 297121 is about 545.0880662792. The cubic root of 297121 is about 66.7284621465.

It can be divided in two parts, 2971 and 21, that added together give a palindrome (2992).

The spelling of 297121 in words is "two hundred ninety-seven thousand, one hundred twenty-one".