1122431 has 2 divisors, whose sum is σ = 1122432. Its totient is φ = 1122430.

The previous prime is 1122427. The next prime is 1122437. The reversal of 1122431 is 1342211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1122431 - 2² = 1122427 is a prime.

It is a super-2 number, since 2×1122431² = 2519702699522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561215 + 561216.

It is an arithmetic number, because the mean of its divisors is an integer number (561216).

2^1122431 is an apocalyptic number.

1122431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122431 is an equidigital number, since it uses as much as digits as its factorization.

1122431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 14.

The square root of 1122431 is about 1059.4484414071. The cubic root of 1122431 is about 103.9249643662.

Adding to 1122431 its reverse (1342211), we get a palindrome (2464642).

It can be divided in two parts, 112 and 2431, that multiplied together give a palindrome (272272).

The spelling of 1122431 in words is "one million, one hundred twenty-two thousand, four hundred thirty-one".