1232431 has 2 divisors, whose sum is σ = 1232432. Its totient is φ = 1232430.

The previous prime is 1232417. The next prime is 1232437. The reversal of 1232431 is 1342321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1232431 - 2¹³ = 1224239 is a prime.

It is a super-2 number, since 2×1232431² = 3037772339522, which contains 22 as substring.

1232431 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616215 + 616216.

It is an arithmetic number, because the mean of its divisors is an integer number (616216).

2^1232431 is an apocalyptic number.

1232431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232431 is an equidigital number, since it uses as much as digits as its factorization.

1232431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 16.

The square root of 1232431 is about 1110.1490890867. The cubic root of 1232431 is about 107.2146678804.

Adding to 1232431 its reverse (1342321), we get a palindrome (2574752).

The spelling of 1232431 in words is "one million, two hundred thirty-two thousand, four hundred thirty-one".