21114963 has 6 divisors (see below), whose sum is σ = 30499404. Its totient is φ = 14076636.

The previous prime is 21114941. The next prime is 21114971. The reversal of 21114963 is 36941112.

It is not a de Polignac number, because 21114963 - 2⁵ = 21114931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21114923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1173045 + ... + 1173062.

It is an arithmetic number, because the mean of its divisors is an integer number (5083234).

Almost surely, 2^21114963 is an apocalyptic number.

21114963 is a deficient number, since it is larger than the sum of its proper divisors (9384441).

21114963 is a wasteful number, since it uses less digits than its factorization.

21114963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346113 (or 2346110 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 21114963 is about 4595.1020663311. The cubic root of 21114963 is about 276.3949528309.

The spelling of 21114963 in words is "twenty-one million, one hundred fourteen thousand, nine hundred sixty-three".