213580106 has 4 divisors (see below), whose sum is σ = 320370162. Its totient is φ = 106790052.

The previous prime is 213580051. The next prime is 213580109. The reversal of 213580106 is 601085312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 209989081 + 3591025 = 14491^2 + 1895^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213580109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53395025 + ... + 53395028.

Almost surely, 2^213580106 is an apocalyptic number.

213580106 is a deficient number, since it is larger than the sum of its proper divisors (106790056).

213580106 is a wasteful number, since it uses less digits than its factorization.

213580106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106790055.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 213580106 is about 14614.3801100149. The cubic root of 213580106 is about 597.7509374707.

The spelling of 213580106 in words is "two hundred thirteen million, five hundred eighty thousand, one hundred six".