213280001 has 4 divisors (see below), whose sum is σ = 232669104. Its totient is φ = 193890900.

The previous prime is 213279967. The next prime is 213280009. The reversal of 213280001 is 100082312.

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 not a de Polignac number, because 213280001 - 2²² = 209085697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213280009) 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, 9694535 + ... + 9694556.

It is an arithmetic number, because the mean of its divisors is an integer number (58167276).

Almost surely, 2^213280001 is an apocalyptic number.

It is an amenable number.

213280001 is a deficient number, since it is larger than the sum of its proper divisors (19389103).

213280001 is a wasteful number, since it uses less digits than its factorization.

213280001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19389102.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 213280001 is about 14604.1090450599. The cubic root of 213280001 is about 597.4708362720.

The spelling of 213280001 in words is "two hundred thirteen million, two hundred eighty thousand, one".