26430143 has 2 divisors, whose sum is σ = 26430144. Its totient is φ = 26430142.

The previous prime is 26430139. The next prime is 26430179. The reversal of 26430143 is 34103462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26430143 - 2² = 26430139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26430133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13215071 + 13215072.

It is an arithmetic number, because the mean of its divisors is an integer number (13215072).

Almost surely, 2^26430143 is an apocalyptic number.

26430143 is a deficient number, since it is larger than the sum of its proper divisors (1).

26430143 is an equidigital number, since it uses as much as digits as its factorization.

26430143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 26430143 is about 5141.0254813607. The cubic root of 26430143 is about 297.8743934107.

The spelling of 26430143 in words is "twenty-six million, four hundred thirty thousand, one hundred forty-three".