213532045 has 16 divisors (see below), whose sum is σ = 263305728. Its totient is φ = 166159360.

The previous prime is 213532031. The next prime is 213532057. The reversal of 213532045 is 540235312.

It is not a de Polignac number, because 213532045 - 2¹⁹ = 213007757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36525 + ... + 41965.

It is an arithmetic number, because the mean of its divisors is an integer number (16456608).

Almost surely, 2^213532045 is an apocalyptic number.

It is an amenable number.

213532045 is a deficient number, since it is larger than the sum of its proper divisors (49773683).

213532045 is a wasteful number, since it uses less digits than its factorization.

213532045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 213532045 is about 14612.7357123846. The cubic root of 213532045 is about 597.7060976781.

Adding to 213532045 its reverse (540235312), we get a palindrome (753767357).

The spelling of 213532045 in words is "two hundred thirteen million, five hundred thirty-two thousand, forty-five".