21136094 has 32 divisors (see below), whose sum is σ = 38438400. Its totient is φ = 8514720.

The previous prime is 21136069. The next prime is 21136123. The reversal of 21136094 is 49063112.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 47927 + ... + 48365.

It is an arithmetic number, because the mean of its divisors is an integer number (1201200).

Almost surely, 2^21136094 is an apocalyptic number.

21136094 is a deficient number, since it is larger than the sum of its proper divisors (17302306).

21136094 is a wasteful number, since it uses less digits than its factorization.

21136094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 21136094 is about 4597.4007874015. The cubic root of 21136094 is about 276.4871237165.

The spelling of 21136094 in words is "twenty-one million, one hundred thirty-six thousand, ninety-four".