21403114 has 4 divisors (see below), whose sum is σ = 32104674. Its totient is φ = 10701556.

The previous prime is 21403111. The next prime is 21403117. The reversal of 21403114 is 41130412.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (21403111) and next prime (21403117).

It can be written as a sum of positive squares in only one way, i.e., 11002489 + 10400625 = 3317^2 + 3225^2 .

It is not an unprimeable number, because it can be changed into a prime (21403111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5350777 + ... + 5350780.

Almost surely, 2^21403114 is an apocalyptic number.

21403114 is a deficient number, since it is larger than the sum of its proper divisors (10701560).

21403114 is a wasteful number, since it uses less digits than its factorization.

21403114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10701559.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 21403114 is about 4626.3499651453. The cubic root of 21403114 is about 277.6465757046.

Adding to 21403114 its reverse (41130412), we get a palindrome (62533526).

The spelling of 21403114 in words is "twenty-one million, four hundred three thousand, one hundred fourteen".