214447745 has 32 divisors (see below), whose sum is σ = 279072000. Its totient is φ = 157766400.

The previous prime is 214447729. The next prime is 214447759. The reversal of 214447745 is 547744412.

It is a happy number.

It is not a de Polignac number, because 214447745 - 2⁴ = 214447729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214447699 and 214447708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429506 + ... + 430004.

It is an arithmetic number, because the mean of its divisors is an integer number (8721000).

Almost surely, 2^214447745 is an apocalyptic number.

It is an amenable number.

214447745 is a deficient number, since it is larger than the sum of its proper divisors (64624255).

214447745 is a wasteful number, since it uses less digits than its factorization.

214447745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its digits is 125440, while the sum is 38.

The square root of 214447745 is about 14644.0344509292. The cubic root of 214447745 is about 598.5592701165.

The spelling of 214447745 in words is "two hundred fourteen million, four hundred forty-seven thousand, seven hundred forty-five".