213529918 has 16 divisors (see below), whose sum is σ = 369607680. Its totient is φ = 90623736.

The previous prime is 213529913. The next prime is 213529919. The reversal of 213529918 is 819925312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213529913) 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, 72598 + ... + 75481.

It is an arithmetic number, because the mean of its divisors is an integer number (23100480).

Almost surely, 2^213529918 is an apocalyptic number.

213529918 is a deficient number, since it is larger than the sum of its proper divisors (156077762).

213529918 is a wasteful number, since it uses less digits than its factorization.

213529918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148191.

The product of its digits is 38880, while the sum is 40.

The square root of 213529918 is about 14612.6629332234. The cubic root of 213529918 is about 597.7041130812.

The spelling of 213529918 in words is "two hundred thirteen million, five hundred twenty-nine thousand, nine hundred eighteen".