21134098 has 16 divisors (see below), whose sum is σ = 32906880. Its totient is φ = 10167696.

The previous prime is 21134093. The next prime is 21134107. The reversal of 21134098 is 89043112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21134093) 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 in 7 ways as a sum of consecutive naturals, for example, 26461 + ... + 27247.

It is an arithmetic number, because the mean of its divisors is an integer number (2056680).

Almost surely, 2^21134098 is an apocalyptic number.

21134098 is a deficient number, since it is larger than the sum of its proper divisors (11772782).

21134098 is a wasteful number, since it uses less digits than its factorization.

21134098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 21134098 is about 4597.1837030948. The cubic root of 21134098 is about 276.4784200322.

The spelling of 21134098 in words is "twenty-one million, one hundred thirty-four thousand, ninety-eight".