16143091 has 2 divisors, whose sum is σ = 16143092. Its totient is φ = 16143090.

The previous prime is 16143073. The next prime is 16143109. The reversal of 16143091 is 19034161.

Together with next prime (16143109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (16143073) and next prime (16143109).

It is an emirp because it is prime and its reverse (19034161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16143091 - 2⁵ = 16143059 is a prime.

It is not a weakly prime, because it can be changed into another prime (16143011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8071545 + 8071546.

It is an arithmetic number, because the mean of its divisors is an integer number (8071546).

Almost surely, 2^16143091 is an apocalyptic number.

16143091 is a deficient number, since it is larger than the sum of its proper divisors (1).

16143091 is an equidigital number, since it uses as much as digits as its factorization.

16143091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 16143091 is about 4017.8465625258. The cubic root of 16143091 is about 252.7331624014.

The spelling of 16143091 in words is "sixteen million, one hundred forty-three thousand, ninety-one".