213886005 has 16 divisors (see below), whose sum is σ = 348675840. Its totient is φ = 111919808.

The previous prime is 213886003. The next prime is 213886037. The reversal of 213886005 is 500688312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 213886005 - 2¹ = 213886003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213886003) 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, 133725 + ... + 135314.

It is an arithmetic number, because the mean of its divisors is an integer number (21792240).

Almost surely, 2^213886005 is an apocalyptic number.

It is an amenable number.

213886005 is a deficient number, since it is larger than the sum of its proper divisors (134789835).

213886005 is a wasteful number, since it uses less digits than its factorization.

213886005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269100.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 213886005 is about 14624.8420504291. The cubic root of 213886005 is about 598.0361765641.

The spelling of 213886005 in words is "two hundred thirteen million, eight hundred eighty-six thousand, five".