213542001 has 20 divisors (see below), whose sum is σ = 319585200. Its totient is φ = 142097976.

The previous prime is 213541997. The next prime is 213542003. The reversal of 213542001 is 100245312.

213542001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213542001 - 2² = 213541997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213542003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48010 + ... + 52268.

It is an arithmetic number, because the mean of its divisors is an integer number (15979260).

Almost surely, 2^213542001 is an apocalyptic number.

It is an amenable number.

213542001 is a deficient number, since it is larger than the sum of its proper divisors (106043199).

213542001 is an equidigital number, since it uses as much as digits as its factorization.

213542001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4890 (or 4881 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 213542001 is about 14613.0763701556. The cubic root of 213542001 is about 597.7153869465.

Adding to 213542001 its reverse (100245312), we get a palindrome (313787313).

The spelling of 213542001 in words is "two hundred thirteen million, five hundred forty-two thousand, one".