213531010 has 64 divisors (see below), whose sum is σ = 486466560. Its totient is φ = 65545920.

The previous prime is 213530983. The next prime is 213531023. The reversal of 213531010 is 10135312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49521 + ... + 53659.

It is an arithmetic number, because the mean of its divisors is an integer number (7601040).

Almost surely, 2^213531010 is an apocalyptic number.

213531010 is an abundant number, since it is smaller than the sum of its proper divisors (272935550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213531010 is a wasteful number, since it uses less digits than its factorization.

213531010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4231.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 213531010 is about 14612.7002980284. The cubic root of 213531010 is about 597.7051319732.

Adding to 213531010 its reverse (10135312), we get a palindrome (223666322).

The spelling of 213531010 in words is "two hundred thirteen million, five hundred thirty-one thousand, ten".