213321485 has 16 divisors (see below), whose sum is σ = 281546496. Its totient is φ = 154175808.

The previous prime is 213321463. The next prime is 213321487. The reversal of 213321485 is 584123312.

It is a happy number.

213321485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213321485 - 2⁶ = 213321421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213321487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31859 + ... + 37968.

It is an arithmetic number, because the mean of its divisors is an integer number (17596656).

Almost surely, 2^213321485 is an apocalyptic number.

It is an amenable number.

213321485 is a deficient number, since it is larger than the sum of its proper divisors (68225011).

213321485 is a wasteful number, since it uses less digits than its factorization.

213321485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69892.

The product of its digits is 5760, while the sum is 29.

The square root of 213321485 is about 14605.5292612079. The cubic root of 213321485 is about 597.5095707576.

Adding to 213321485 its reverse (584123312), we get a palindrome (797444797).

The spelling of 213321485 in words is "two hundred thirteen million, three hundred twenty-one thousand, four hundred eighty-five".