214330661 has 4 divisors (see below), whose sum is σ = 216018432. Its totient is φ = 212642892.

The previous prime is 214330579. The next prime is 214330663. The reversal of 214330661 is 166033412.

214330661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 214330661 - 2²⁶ = 147221797 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 214330661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214330663) 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, 843695 + ... + 843948.

It is an arithmetic number, because the mean of its divisors is an integer number (54004608).

Almost surely, 2^214330661 is an apocalyptic number.

It is an amenable number.

214330661 is a deficient number, since it is larger than the sum of its proper divisors (1687771).

214330661 is a wasteful number, since it uses less digits than its factorization.

214330661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687770.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 214330661 is about 14640.0362362940. The cubic root of 214330661 is about 598.4503166559.

The spelling of 214330661 in words is "two hundred fourteen million, three hundred thirty thousand, six hundred sixty-one".