1230431 has 8 divisors (see below), whose sum is σ = 1306464. Its totient is φ = 1156320.

The previous prime is 1230401. The next prime is 1230433. The reversal of 1230431 is 1340321.

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

It is a cyclic number.

It is not a de Polignac number, because 1230431 - 2⁶ = 1230367 is a prime.

It is a super-2 number, since 2×1230431² = 3027920891522, 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 (1230433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965 + ... + 1841.

It is an arithmetic number, because the mean of its divisors is an integer number (163308).

2^1230431 is an apocalyptic number.

1230431 is a deficient number, since it is larger than the sum of its proper divisors (76033).

1230431 is an equidigital number, since it uses as much as digits as its factorization.

1230431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1230431 is about 1109.2479434283. The cubic root of 1230431 is about 107.1566401739.

Adding to 1230431 its reverse (1340321), we get a palindrome (2570752).

It can be divided in two parts, 1230 and 431, that added together give a palindrome (1661).

The spelling of 1230431 in words is "one million, two hundred thirty thousand, four hundred thirty-one".