2997121 has 4 divisors (see below), whose sum is σ = 3100500. Its totient is φ = 2893744.

The previous prime is 2997109. The next prime is 2997131. The reversal of 2997121 is 1217992.

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 923521 + 2073600 = 961^2 + 1440^2 .

It is a cyclic number.

It is not a de Polignac number, because 2997121 - 2⁵ = 2997089 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2997101) 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, 51646 + ... + 51703.

It is an arithmetic number, because the mean of its divisors is an integer number (775125).

2^2997121 is an apocalyptic number.

It is an amenable number.

2997121 is a deficient number, since it is larger than the sum of its proper divisors (103379).

2997121 is a wasteful number, since it uses less digits than its factorization.

2997121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103378.

The product of its digits is 2268, while the sum is 31.

The square root of 2997121 is about 1731.2195123669. The cubic root of 2997121 is about 144.1788063032.

It can be divided in two parts, 29971 and 21, that added together give a palindrome (29992).

The spelling of 2997121 in words is "two million, nine hundred ninety-seven thousand, one hundred twenty-one".