1140431 has 2 divisors, whose sum is σ = 1140432. Its totient is φ = 1140430.

The previous prime is 1140421. The next prime is 1140439. The reversal of 1140431 is 1340411.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1340411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1140431 - 2¹⁰ = 1139407 is a prime.

It is a super-2 number, since 2×1140431² = 2601165731522, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570215 + 570216.

It is an arithmetic number, because the mean of its divisors is an integer number (570216).

2^1140431 is an apocalyptic number.

1140431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140431 is an equidigital number, since it uses as much as digits as its factorization.

1140431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1140431 is about 1067.9096403723. The cubic root of 1140431 is about 104.4775559806.

Adding to 1140431 its reverse (1340411), we get a palindrome (2480842).

The spelling of 1140431 in words is "one million, one hundred forty thousand, four hundred thirty-one".