214101813 has 4 divisors (see below), whose sum is σ = 285469088. Its totient is φ = 142734540.

The previous prime is 214101787. The next prime is 214101847. The reversal of 214101813 is 318101412.

It is a happy number.

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 not a de Polignac number, because 214101813 - 2⁵ = 214101781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214101813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214101863) 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, 35683633 + ... + 35683638.

It is an arithmetic number, because the mean of its divisors is an integer number (71367272).

Almost surely, 2^214101813 is an apocalyptic number.

It is an amenable number.

214101813 is a deficient number, since it is larger than the sum of its proper divisors (71367275).

214101813 is an equidigital number, since it uses as much as digits as its factorization.

214101813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71367274.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 214101813 is about 14632.2183212253. The cubic root of 214101813 is about 598.2372456781.

The spelling of 214101813 in words is "two hundred fourteen million, one hundred one thousand, eight hundred thirteen".