21082095 has 12 divisors (see below), whose sum is σ = 36542376. Its totient is φ = 11243760.

The previous prime is 21082093. The next prime is 21082109. The reversal of 21082095 is 59028012.

It is not a de Polignac number, because 21082095 - 2¹ = 21082093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21082093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234201 + ... + 234290.

It is an arithmetic number, because the mean of its divisors is an integer number (3045198).

Almost surely, 2^21082095 is an apocalyptic number.

21082095 is a deficient number, since it is larger than the sum of its proper divisors (15460281).

21082095 is a wasteful number, since it uses less digits than its factorization.

21082095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468502 (or 468499 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 21082095 is about 4591.5242567148. The cubic root of 21082095 is about 276.2514642675.

The spelling of 21082095 in words is "twenty-one million, eighty-two thousand, ninety-five".