21459009141 has 12 divisors (see below), whose sum is σ = 31004096032. Its totient is φ = 14302429416.

The previous prime is 21459009097. The next prime is 21459009163. The reversal of 21459009141 is 14190095412.

It is a happy number.

21459009141 is a `hidden beast` number, since 21 + 4 + 590 + 0 + 9 + 1 + 41 = 666.

It is not a de Polignac number, because 21459009141 - 2¹⁰ = 21459008117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21459009096 and 21459009105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21459009181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259801 + ... + 332286.

Almost surely, 2^21459009141 is an apocalyptic number.

It is an amenable number.

21459009141 is a deficient number, since it is larger than the sum of its proper divisors (9545086891).

21459009141 is a wasteful number, since it uses less digits than its factorization.

21459009141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596120 (or 596117 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 21459009141 in words is "twenty-one billion, four hundred fifty-nine million, nine thousand, one hundred forty-one".