213281395 has 8 divisors (see below), whose sum is σ = 264193920. Its totient is φ = 165120960.

The previous prime is 213281389. The next prime is 213281417. The reversal of 213281395 is 593182312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213281395 - 2⁵ = 213281363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213281395.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687850 + ... + 688159.

It is an arithmetic number, because the mean of its divisors is an integer number (33024240).

Almost surely, 2^213281395 is an apocalyptic number.

213281395 is a deficient number, since it is larger than the sum of its proper divisors (50912525).

213281395 is a wasteful number, since it uses less digits than its factorization.

213281395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376045.

The product of its digits is 12960, while the sum is 34.

The square root of 213281395 is about 14604.1567712758. The cubic root of 213281395 is about 597.4721379607.

The spelling of 213281395 in words is "two hundred thirteen million, two hundred eighty-one thousand, three hundred ninety-five".