213532642 has 8 divisors (see below), whose sum is σ = 324810432. Its totient is φ = 105262500.

The previous prime is 213532637. The next prime is 213532679. The reversal of 213532642 is 246235312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 213532642.

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 3 ways as a sum of consecutive naturals, for example, 751734 + ... + 752017.

It is an arithmetic number, because the mean of its divisors is an integer number (40601304).

Almost surely, 2^213532642 is an apocalyptic number.

213532642 is a deficient number, since it is larger than the sum of its proper divisors (111277790).

213532642 is a wasteful number, since it uses less digits than its factorization.

213532642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503824.

The product of its digits is 8640, while the sum is 28.

The square root of 213532642 is about 14612.7561397568. The cubic root of 213532642 is about 597.7066547064.

Adding to 213532642 its reverse (246235312), we get a palindrome (459767954).

The spelling of 213532642 in words is "two hundred thirteen million, five hundred thirty-two thousand, six hundred forty-two".