214393561 has 4 divisors (see below), whose sum is σ = 214727632. Its totient is φ = 214059492.

The previous prime is 214393519. The next prime is 214393583. The reversal of 214393561 is 165393412.

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 214393561 - 2²⁵ = 180839129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214393261) 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, 166071 + ... + 167356.

It is an arithmetic number, because the mean of its divisors is an integer number (53681908).

Almost surely, 2^214393561 is an apocalyptic number.

It is an amenable number.

214393561 is a deficient number, since it is larger than the sum of its proper divisors (334071).

214393561 is an equidigital number, since it uses as much as digits as its factorization.

214393561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334070.

The product of its digits is 19440, while the sum is 34.

The square root of 214393561 is about 14642.1842974332. The cubic root of 214393561 is about 598.5088536893.

The spelling of 214393561 in words is "two hundred fourteen million, three hundred ninety-three thousand, five hundred sixty-one".