1423231 has 2 divisors, whose sum is σ = 1423232. Its totient is φ = 1423230.

The previous prime is 1423193. The next prime is 1423237. The reversal of 1423231 is 1323241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1423231 - 2¹³ = 1415039 is a prime.

It is a super-2 number, since 2×1423231² = 4051172958722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423237) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711615 + 711616.

It is an arithmetic number, because the mean of its divisors is an integer number (711616).

2^1423231 is an apocalyptic number.

1423231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423231 is an equidigital number, since it uses as much as digits as its factorization.

1423231 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 1423231 is about 1192.9924559694. The cubic root of 1423231 is about 112.4842710520.

Adding to 1423231 its reverse (1323241), we get a palindrome (2746472).

The spelling of 1423231 in words is "one million, four hundred twenty-three thousand, two hundred thirty-one".