213495 has 16 divisors (see below), whose sum is σ = 350592. Its totient is φ = 110880.

The previous prime is 213491. The next prime is 213523. The reversal of 213495 is 594312.

213495 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213495 - 2² = 213491 is a prime.

213495 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (21912).

2²¹³⁴⁹⁵ is an apocalyptic number.

213495 is a deficient number, since it is larger than the sum of its proper divisors (137097).

213495 is a wasteful number, since it uses less digits than its factorization.

213495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its digits is 1080, while the sum is 24.

The square root of 213495 is about 462.0551915085. The cubic root of 213495 is about 59.7671530965.

The spelling of 213495 in words is "two hundred thirteen thousand, four hundred ninety-five".