21194095 has 8 divisors (see below), whose sum is σ = 27389376. Its totient is φ = 15650976.

The previous prime is 21194093. The next prime is 21194113. The reversal of 21194095 is 59049112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21194095 - 2¹ = 21194093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21194093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162967 + ... + 163096.

It is an arithmetic number, because the mean of its divisors is an integer number (3423672).

Almost surely, 2^21194095 is an apocalyptic number.

21194095 is a deficient number, since it is larger than the sum of its proper divisors (6195281).

21194095 is a wasteful number, since it uses less digits than its factorization.

21194095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326081.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 21194095 is about 4603.7044866064. The cubic root of 21194095 is about 276.7398017974.

The spelling of 21194095 in words is "twenty-one million, one hundred ninety-four thousand, ninety-five".