1132431 has 4 divisors (see below), whose sum is σ = 1509912. Its totient is φ = 754952.

The previous prime is 1132429. The next prime is 1132447. The reversal of 1132431 is 1342311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1132431 - 2¹ = 1132429 is a prime.

It is a super-2 number, since 2×1132431² = 2564799939522, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1132431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188736 + ... + 188741.

It is an arithmetic number, because the mean of its divisors is an integer number (377478).

2^1132431 is an apocalyptic number.

1132431 is a deficient number, since it is larger than the sum of its proper divisors (377481).

1132431 is an equidigital number, since it uses as much as digits as its factorization.

1132431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377480.

The product of its digits is 72, while the sum is 15.

The square root of 1132431 is about 1064.1574131678. The cubic root of 1132431 is about 104.2326829174.

Adding to 1132431 its reverse (1342311), we get a palindrome (2474742).

The spelling of 1132431 in words is "one million, one hundred thirty-two thousand, four hundred thirty-one".