21514483 has 2 divisors, whose sum is σ = 21514484. Its totient is φ = 21514482.

The previous prime is 21514439. The next prime is 21514531. The reversal of 21514483 is 38441512.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21514483 is a prime.

It is not a weakly prime, because it can be changed into another prime (21512483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10757241 + 10757242.

It is an arithmetic number, because the mean of its divisors is an integer number (10757242).

Almost surely, 2^21514483 is an apocalyptic number.

21514483 is a deficient number, since it is larger than the sum of its proper divisors (1).

21514483 is an equidigital number, since it uses as much as digits as its factorization.

21514483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 28.

The square root of 21514483 is about 4638.3707268824. The cubic root of 21514483 is about 278.1273117344.

Adding to 21514483 its reverse (38441512), we get a palindrome (59955995).

The spelling of 21514483 in words is "twenty-one million, five hundred fourteen thousand, four hundred eighty-three".