4215245 has 8 divisors (see below), whose sum is σ = 5324640. Its totient is φ = 3194640.

The previous prime is 4215241. The next prime is 4215259. The reversal of 4215245 is 5425124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4215245 - 2² = 4215241 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4215245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4215241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22091 + ... + 22280.

It is an arithmetic number, because the mean of its divisors is an integer number (665580).

Almost surely, 2^4215245 is an apocalyptic number.

It is an amenable number.

4215245 is a deficient number, since it is larger than the sum of its proper divisors (1109395).

4215245 is a wasteful number, since it uses less digits than its factorization.

4215245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44395.

The product of its digits is 1600, while the sum is 23.

The square root of 4215245 is about 2053.1061833232. The cubic root of 4215245 is about 161.5378409477.

The spelling of 4215245 in words is "four million, two hundred fifteen thousand, two hundred forty-five".