214400245 has 4 divisors (see below), whose sum is σ = 257280300. Its totient is φ = 171520192.

The previous prime is 214400239. The next prime is 214400261. The reversal of 214400245 is 542004412.

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 85396081 + 129004164 = 9241^2 + 11358^2 .

It is a cyclic number.

It is not a de Polignac number, because 214400245 - 2⁷ = 214400117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21440020 + ... + 21440029.

It is an arithmetic number, because the mean of its divisors is an integer number (64320075).

Almost surely, 2^214400245 is an apocalyptic number.

It is an amenable number.

214400245 is a deficient number, since it is larger than the sum of its proper divisors (42880055).

214400245 is an equidigital number, since it uses as much as digits as its factorization.

214400245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42880054.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 214400245 is about 14642.4125402886. The cubic root of 214400245 is about 598.5150733904.

Adding to 214400245 its reverse (542004412), we get a palindrome (756404657).

The spelling of 214400245 in words is "two hundred fourteen million, four hundred thousand, two hundred forty-five".