2957121 has 16 divisors (see below), whose sum is σ = 4523520. Its totient is φ = 1907280.

The previous prime is 2957111. The next prime is 2957161. The reversal of 2957121 is 1217592.

2957121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2957121 - 2⁶ = 2957057 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2957111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930 + ... + 2603.

It is an arithmetic number, because the mean of its divisors is an integer number (282720).

2^2957121 is an apocalyptic number.

It is an amenable number.

2957121 is a deficient number, since it is larger than the sum of its proper divisors (1566399).

2957121 is a wasteful number, since it uses less digits than its factorization.

2957121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573 (or 3567 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 2957121 is about 1719.6281574806. The cubic root of 2957121 is about 143.5345212709.

It can be divided in two parts, 29571 and 21, that added together give a palindrome (29592).

The spelling of 2957121 in words is "two million, nine hundred fifty-seven thousand, one hundred twenty-one".