213701140 has 12 divisors (see below), whose sum is σ = 448772436. Its totient is φ = 85480448.

The previous prime is 213701129. The next prime is 213701167. The reversal of 213701140 is 41107312.

It can be written as a sum of positive squares in 2 ways, for example, as 154902916 + 58798224 = 12446^2 + 7668^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5342509 + ... + 5342548.

It is an arithmetic number, because the mean of its divisors is an integer number (37397703).

Almost surely, 2^213701140 is an apocalyptic number.

213701140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213701140 is an abundant number, since it is smaller than the sum of its proper divisors (235071296).

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

213701140 is a wasteful number, since it uses less digits than its factorization.

213701140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10685066 (or 10685064 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 213701140 is about 14618.5204449698. The cubic root of 213701140 is about 597.8638295782.

Adding to 213701140 its reverse (41107312), we get a palindrome (254808452).

The spelling of 213701140 in words is "two hundred thirteen million, seven hundred one thousand, one hundred forty".