21413195 has 16 divisors (see below), whose sum is σ = 26548320. Its totient is φ = 16568064.

The previous prime is 21413191. The next prime is 21413221. The reversal of 21413195 is 59131412.

It is a cyclic number.

It is not a de Polignac number, because 21413195 - 2² = 21413191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21413191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52151 + ... + 52559.

It is an arithmetic number, because the mean of its divisors is an integer number (1659270).

Almost surely, 2^21413195 is an apocalyptic number.

21413195 is a deficient number, since it is larger than the sum of its proper divisors (5135125).

21413195 is a wasteful number, since it uses less digits than its factorization.

21413195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734.

The product of its digits is 1080, while the sum is 26.

The square root of 21413195 is about 4627.4393567069. The cubic root of 21413195 is about 277.6901599513.

The spelling of 21413195 in words is "twenty-one million, four hundred thirteen thousand, one hundred ninety-five".