21367095 has 16 divisors (see below), whose sum is σ = 34670592. Its totient is φ = 11234720.

The previous prime is 21367067. The next prime is 21367111. The reversal of 21367095 is 59076312.

It is not a de Polignac number, because 21367095 - 2¹³ = 21358903 is a prime.

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, 8967 + ... + 11096.

It is an arithmetic number, because the mean of its divisors is an integer number (2166912).

Almost surely, 2^21367095 is an apocalyptic number.

21367095 is a deficient number, since it is larger than the sum of its proper divisors (13303497).

21367095 is a wasteful number, since it uses less digits than its factorization.

21367095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20142.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 21367095 is about 4622.4555162814. The cubic root of 21367095 is about 277.4907390790.

The spelling of 21367095 in words is "twenty-one million, three hundred sixty-seven thousand, ninety-five".