1235431 has 2 divisors, whose sum is σ = 1235432. Its totient is φ = 1235430.

The previous prime is 1235419. The next prime is 1235447. The reversal of 1235431 is 1345321.

1235431 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1235431 - 2⁷ = 1235303 is a prime.

It is a super-2 number, since 2×1235431² = 3052579511522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1235399 and 1235408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617715 + 617716.

It is an arithmetic number, because the mean of its divisors is an integer number (617716).

2^1235431 is an apocalyptic number.

1235431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235431 is an equidigital number, since it uses as much as digits as its factorization.

1235431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 19.

The square root of 1235431 is about 1111.4994376967. The cubic root of 1235431 is about 107.3015918469.

The spelling of 1235431 in words is "one million, two hundred thirty-five thousand, four hundred thirty-one".