213632142 has 16 divisors (see below), whose sum is σ = 445841280. Its totient is φ = 68114552.

The previous prime is 213632141. The next prime is 213632171. The reversal of 213632142 is 241236312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213632141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773892 + ... + 774167.

It is an arithmetic number, because the mean of its divisors is an integer number (27865080).

Almost surely, 2^213632142 is an apocalyptic number.

213632142 is an abundant number, since it is smaller than the sum of its proper divisors (232209138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213632142 is a wasteful number, since it uses less digits than its factorization.

213632142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548087.

The product of its digits is 1728, while the sum is 24.

The square root of 213632142 is about 14616.1603028976. The cubic root of 213632142 is about 597.7994782620.

Adding to 213632142 its reverse (241236312), we get a palindrome (454868454).

The spelling of 213632142 in words is "two hundred thirteen million, six hundred thirty-two thousand, one hundred forty-two".