213524465 has 48 divisors (see below), whose sum is σ = 325226496. Its totient is φ = 131725440.

The previous prime is 213524453. The next prime is 213524483. The reversal of 213524465 is 564425312.

It is not a de Polignac number, because 213524465 - 2⁴ = 213524449 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 537647 + ... + 538043.

It is an arithmetic number, because the mean of its divisors is an integer number (6775552).

Almost surely, 2^213524465 is an apocalyptic number.

It is an amenable number.

213524465 is a deficient number, since it is larger than the sum of its proper divisors (111702031).

213524465 is a wasteful number, since it uses less digits than its factorization.

213524465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 547 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 213524465 is about 14612.4763472862. The cubic root of 213524465 is about 597.6990251006.

Adding to 213524465 its reverse (564425312), we get a palindrome (777949777).

The spelling of 213524465 in words is "two hundred thirteen million, five hundred twenty-four thousand, four hundred sixty-five".