214166245 has 4 divisors (see below), whose sum is σ = 256999500. Its totient is φ = 171332992.

The previous prime is 214166243. The next prime is 214166257. The reversal of 214166245 is 542661412.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121198081 + 92968164 = 11009^2 + 9642^2 .

It is a cyclic number.

It is not a de Polignac number, because 214166245 - 2¹ = 214166243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214166243) 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, 21416620 + ... + 21416629.

It is an arithmetic number, because the mean of its divisors is an integer number (64249875).

Almost surely, 2^214166245 is an apocalyptic number.

It is an amenable number.

214166245 is a deficient number, since it is larger than the sum of its proper divisors (42833255).

214166245 is an equidigital number, since it uses as much as digits as its factorization.

214166245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42833254.

The product of its digits is 11520, while the sum is 31.

The square root of 214166245 is about 14634.4198723421. The cubic root of 214166245 is about 598.2972510181.

It can be divided in two parts, 2141 and 66245, that added together give a palindrome (68386).

The spelling of 214166245 in words is "two hundred fourteen million, one hundred sixty-six thousand, two hundred forty-five".