21430714159 has 2 divisors, whose sum is σ = 21430714160. Its totient is φ = 21430714158.

The previous prime is 21430714153. The next prime is 21430714183. The reversal of 21430714159 is 95141703412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21430714159 - 2¹⁷ = 21430583087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21430714153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10715357079 + 10715357080.

It is an arithmetic number, because the mean of its divisors is an integer number (10715357080).

Almost surely, 2^21430714159 is an apocalyptic number.

21430714159 is a deficient number, since it is larger than the sum of its proper divisors (1).

21430714159 is an equidigital number, since it uses as much as digits as its factorization.

21430714159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 21430714159 in words is "twenty-one billion, four hundred thirty million, seven hundred fourteen thousand, one hundred fifty-nine".