1043431 has 4 divisors (see below), whose sum is σ = 1053864. Its totient is φ = 1033000.

The previous prime is 1043401. The next prime is 1043453. The reversal of 1043431 is 1343401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043431 is a prime.

It is a super-2 number, since 2×1043431² = 2177496503522, which contains 22 as substring.

It is a Duffinian number.

1043431 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5065 + ... + 5266.

It is an arithmetic number, because the mean of its divisors is an integer number (263466).

2^1043431 is an apocalyptic number.

1043431 is a deficient number, since it is larger than the sum of its proper divisors (10433).

1043431 is a wasteful number, since it uses less digits than its factorization.

1043431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10432.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1043431 is about 1021.4847037523. The cubic root of 1043431 is about 101.4272331466.

Adding to 1043431 its reverse (1343401), we get a palindrome (2386832).

The spelling of 1043431 in words is "one million, forty-three thousand, four hundred thirty-one".