21119593 has 8 divisors (see below), whose sum is σ = 24395040. Its totient is φ = 18070080.

The previous prime is 21119561. The next prime is 21119617. The reversal of 21119593 is 39591112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21119593 - 2⁵ = 21119561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21119503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56283 + ... + 56656.

It is an arithmetic number, because the mean of its divisors is an integer number (3049380).

Almost surely, 2^21119593 is an apocalyptic number.

It is an amenable number.

21119593 is a deficient number, since it is larger than the sum of its proper divisors (3275447).

21119593 is a wasteful number, since it uses less digits than its factorization.

21119593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112967.

The product of its digits is 2430, while the sum is 31.

The square root of 21119593 is about 4595.6058360134. The cubic root of 21119593 is about 276.4151535942.

It can be divided in two parts, 21119 and 593, that added together give a palindrome (21712).

The spelling of 21119593 in words is "twenty-one million, one hundred nineteen thousand, five hundred ninety-three".