21467134 has 32 divisors (see below), whose sum is σ = 36469440. Its totient is φ = 9408000.

The previous prime is 21467129. The next prime is 21467153. The reversal of 21467134 is 43176412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53334 + ... + 53734.

It is an arithmetic number, because the mean of its divisors is an integer number (1139670).

Almost surely, 2^21467134 is an apocalyptic number.

21467134 is a deficient number, since it is larger than the sum of its proper divisors (15002306).

21467134 is a wasteful number, since it uses less digits than its factorization.

21467134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

The product of its digits is 4032, while the sum is 28.

The square root of 21467134 is about 4633.2638603904. The cubic root of 21467134 is about 277.9231279959.

The spelling of 21467134 in words is "twenty-one million, four hundred sixty-seven thousand, one hundred thirty-four".