213542052 has 24 divisors (see below), whose sum is σ = 502072032. Its totient is φ = 70636800.

The previous prime is 213542047. The next prime is 213542053. The reversal of 213542052 is 250245312.

It is not an unprimeable number, because it can be changed into a prime (213542053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66349 + ... + 69492.

It is an arithmetic number, because the mean of its divisors is an integer number (20919668).

Almost surely, 2^213542052 is an apocalyptic number.

It is an amenable number.

213542052 is an abundant number, since it is smaller than the sum of its proper divisors (288529980).

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

213542052 is a wasteful number, since it uses less digits than its factorization.

213542052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135979 (or 135977 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 213542052 is about 14613.0781151679. The cubic root of 213542052 is about 597.7154345304.

Adding to 213542052 its reverse (250245312), we get a palindrome (463787364).

The spelling of 213542052 in words is "two hundred thirteen million, five hundred forty-two thousand, fifty-two".