4245207 has 4 divisors (see below), whose sum is σ = 5660280. Its totient is φ = 2830136.

The previous prime is 4245203. The next prime is 4245209. The reversal of 4245207 is 7025424.

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

It is a cyclic number.

It is not a de Polignac number, because 4245207 - 2² = 4245203 is a prime.

It is an Ulam number.

It is a D-number.

4245207 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245203) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 707532 + ... + 707537.

It is an arithmetic number, because the mean of its divisors is an integer number (1415070).

Almost surely, 2^4245207 is an apocalyptic number.

4245207 is a deficient number, since it is larger than the sum of its proper divisors (1415073).

4245207 is a wasteful number, since it uses less digits than its factorization.

4245207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415072.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 4245207 is about 2060.3900116240. The cubic root of 4245207 is about 161.9196751614.

The spelling of 4245207 in words is "four million, two hundred forty-five thousand, two hundred seven".