7122431 has 4 divisors (see below), whose sum is σ = 7128264. Its totient is φ = 7116600.

The previous prime is 7122413. The next prime is 7122443. The reversal of 7122431 is 1342217.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7122431 - 2¹⁰ = 7121407 is a prime.

It is a super-2 number, since 2×7122431² = 101458046699522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305 + ... + 3786.

It is an arithmetic number, because the mean of its divisors is an integer number (1782066).

Almost surely, 2^7122431 is an apocalyptic number.

7122431 is a deficient number, since it is larger than the sum of its proper divisors (5833).

7122431 is a wasteful number, since it uses less digits than its factorization.

7122431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832.

The product of its digits is 336, while the sum is 20.

The square root of 7122431 is about 2668.7883018329. The cubic root of 7122431 is about 192.4019267676.

Adding to 7122431 its reverse (1342217), we get a palindrome (8464648).

The spelling of 7122431 in words is "seven million, one hundred twenty-two thousand, four hundred thirty-one".