213340001 has 4 divisors (see below), whose sum is σ = 243817152. Its totient is φ = 182862852.

The previous prime is 213339989. The next prime is 213340027. The reversal of 213340001 is 100043312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213340001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213340051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15238565 + ... + 15238578.

It is an arithmetic number, because the mean of its divisors is an integer number (60954288).

Almost surely, 2^213340001 is an apocalyptic number.

It is an amenable number.

213340001 is a deficient number, since it is larger than the sum of its proper divisors (30477151).

213340001 is an equidigital number, since it uses as much as digits as its factorization.

213340001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30477150.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 213340001 is about 14606.1631169859. The cubic root of 213340001 is about 597.5268579163.

Adding to 213340001 its reverse (100043312), we get a palindrome (313383313).

The spelling of 213340001 in words is "two hundred thirteen million, three hundred forty thousand, one".