2122431 has 8 divisors (see below), whose sum is σ = 2906544. Its totient is φ = 1376640.

The previous prime is 2122427. The next prime is 2122441. The reversal of 2122431 is 1342212.

2122431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2122431 - 2² = 2122427 is a prime.

It is a super-2 number, since 2×2122431² = 9009426699522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2122431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122441) 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 7 ways as a sum of consecutive naturals, for example, 9450 + ... + 9671.

It is an arithmetic number, because the mean of its divisors is an integer number (363318).

2^2122431 is an apocalyptic number.

2122431 is a deficient number, since it is larger than the sum of its proper divisors (784113).

2122431 is a wasteful number, since it uses less digits than its factorization.

2122431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19161.

The product of its digits is 96, while the sum is 15.

The square root of 2122431 is about 1456.8565475022. The cubic root of 2122431 is about 128.5122498378.

Adding to 2122431 its reverse (1342212), we get a palindrome (3464643).

The spelling of 2122431 in words is "two million, one hundred twenty-two thousand, four hundred thirty-one".