213177320 has 32 divisors (see below), whose sum is σ = 480107520. Its totient is φ = 85189440.

The previous prime is 213177319. The next prime is 213177323. The reversal of 213177320 is 23771312.

It is a self number, because there is not a number n which added to its sum of digits gives 213177320.

It is not an unprimeable number, because it can be changed into a prime (213177323) 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, 57029 + ... + 60651.

It is an arithmetic number, because the mean of its divisors is an integer number (15003360).

Almost surely, 2^213177320 is an apocalyptic number.

213177320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213177320 is an abundant number, since it is smaller than the sum of its proper divisors (266930200).

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

213177320 is a wasteful number, since it uses less digits than its factorization.

213177320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5105 (or 5101 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 213177320 is about 14600.5931386365. The cubic root of 213177320 is about 597.3749392500.

The spelling of 213177320 in words is "two hundred thirteen million, one hundred seventy-seven thousand, three hundred twenty".