21141319 has 32 divisors (see below), whose sum is σ = 25444800. Its totient is φ = 17418240.

The previous prime is 21141317. The next prime is 21141361. The reversal of 21141319 is 91314112.

It is a cyclic number.

It is not a de Polignac number, because 21141319 - 2¹ = 21141317 is a prime.

It is a super-2 number, since 2×21141319² = 893910738119522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21141319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346549 + ... + 346609.

It is an arithmetic number, because the mean of its divisors is an integer number (795150).

Almost surely, 2^21141319 is an apocalyptic number.

21141319 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

21141319 is a deficient number, since it is larger than the sum of its proper divisors (4303481).

21141319 is a wasteful number, since it uses less digits than its factorization.

21141319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163.

The product of its digits is 216, while the sum is 22.

The square root of 21141319 is about 4597.9690081600. The cubic root of 21141319 is about 276.5099050654.

The spelling of 21141319 in words is "twenty-one million, one hundred forty-one thousand, three hundred nineteen".