21141192 has 16 divisors (see below), whose sum is σ = 52853040. Its totient is φ = 7047056.

The previous prime is 21141161. The next prime is 21141227. The reversal of 21141192 is 29114112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440418 + ... + 440465.

It is an arithmetic number, because the mean of its divisors is an integer number (3303315).

Almost surely, 2^21141192 is an apocalyptic number.

It is an amenable number.

21141192 is an abundant number, since it is smaller than the sum of its proper divisors (31711848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21141192 is a wasteful number, since it uses less digits than its factorization.

21141192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880892 (or 880888 counting only the distinct ones).

The product of its digits is 144, while the sum is 21.

The square root of 21141192 is about 4597.9551976939. The cubic root of 21141192 is about 276.5093513815.

The spelling of 21141192 in words is "twenty-one million, one hundred forty-one thousand, one hundred ninety-two".