21514112 has 32 divisors (see below), whose sum is σ = 45385920. Its totient is φ = 10123264.

The previous prime is 21514091. The next prime is 21514117. The reversal of 21514112 is 21141512.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2768 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (1418310).

Almost surely, 2^21514112 is an apocalyptic number.

It is an amenable number.

21514112 is an abundant number, since it is smaller than the sum of its proper divisors (23871808).

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

21514112 is an equidigital number, since it uses as much as digits as its factorization.

21514112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9918 (or 9906 counting only the distinct ones).

The product of its digits is 80, while the sum is 17.

The square root of 21514112 is about 4638.3307342189. The cubic root of 21514112 is about 278.1257130310.

Adding to 21514112 its reverse (21141512), we get a palindrome (42655624).

The spelling of 21514112 in words is "twenty-one million, five hundred fourteen thousand, one hundred twelve".