213816895 has 16 divisors (see below), whose sum is σ = 267848928. Its totient is φ = 163693440.

The previous prime is 213816853. The next prime is 213816919. The reversal of 213816895 is 598618312.

It is not a de Polignac number, because 213816895 - 2¹³ = 213808703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1812 + ... + 20758.

It is an arithmetic number, because the mean of its divisors is an integer number (16740558).

Almost surely, 2^213816895 is an apocalyptic number.

213816895 is a deficient number, since it is larger than the sum of its proper divisors (54032033).

213816895 is a wasteful number, since it uses less digits than its factorization.

213816895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19050.

The product of its digits is 103680, while the sum is 43.

The square root of 213816895 is about 14622.4790989763. The cubic root of 213816895 is about 597.9717579307.

The spelling of 213816895 in words is "two hundred thirteen million, eight hundred sixteen thousand, eight hundred ninety-five".