213633545 has 16 divisors (see below), whose sum is σ = 267909120. Its totient is φ = 163230144.

The previous prime is 213633481. The next prime is 213633547. The reversal of 213633545 is 545336312.

213633545 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 213633545 - 2⁶ = 213633481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213633547) 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, 124151 + ... + 125859.

It is an arithmetic number, because the mean of its divisors is an integer number (16744320).

Almost surely, 2^213633545 is an apocalyptic number.

It is an amenable number.

213633545 is a deficient number, since it is larger than the sum of its proper divisors (54275575).

213633545 is a wasteful number, since it uses less digits than its factorization.

213633545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824.

The product of its digits is 32400, while the sum is 32.

The square root of 213633545 is about 14616.2082976400. The cubic root of 213633545 is about 597.8007869147.

Adding to 213633545 its reverse (545336312), we get a palindrome (758969857).

The spelling of 213633545 in words is "two hundred thirteen million, six hundred thirty-three thousand, five hundred forty-five".