16431043 has 2 divisors, whose sum is σ = 16431044. Its totient is φ = 16431042.

The previous prime is 16431017. The next prime is 16431053. The reversal of 16431043 is 34013461.

It is a strong prime.

It is an emirp because it is prime and its reverse (34013461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16431043 - 2¹⁷ = 16299971 is a prime.

It is not a weakly prime, because it can be changed into another prime (16431053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8215521 + 8215522.

It is an arithmetic number, because the mean of its divisors is an integer number (8215522).

Almost surely, 2^16431043 is an apocalyptic number.

16431043 is a deficient number, since it is larger than the sum of its proper divisors (1).

16431043 is an equidigital number, since it uses as much as digits as its factorization.

16431043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 16431043 is about 4053.5222954857. The cubic root of 16431043 is about 254.2270223174.

The spelling of 16431043 in words is "sixteen million, four hundred thirty-one thousand, forty-three".