21196275 has 12 divisors (see below), whose sum is σ = 35044632. Its totient is φ = 11304640.

The previous prime is 21196261. The next prime is 21196277. The reversal of 21196275 is 57269112.

It is not a de Polignac number, because 21196275 - 2⁶ = 21196211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21196277) 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, 141234 + ... + 141383.

It is an arithmetic number, because the mean of its divisors is an integer number (2920386).

Almost surely, 2^21196275 is an apocalyptic number.

21196275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21196275 is a deficient number, since it is larger than the sum of its proper divisors (13848357).

21196275 is a wasteful number, since it uses less digits than its factorization.

21196275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282630 (or 282625 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 21196275 is about 4603.9412463671. The cubic root of 21196275 is about 276.7492898503.

The spelling of 21196275 in words is "twenty-one million, one hundred ninety-six thousand, two hundred seventy-five".