4052215 has 4 divisors (see below), whose sum is σ = 4862664. Its totient is φ = 3241768.

The previous prime is 4052207. The next prime is 4052231. The reversal of 4052215 is 5122504.

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 4052215 - 2³ = 4052207 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 4052192 and 4052201.

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, 405217 + ... + 405226.

It is an arithmetic number, because the mean of its divisors is an integer number (1215666).

Almost surely, 2^4052215 is an apocalyptic number.

4052215 is a deficient number, since it is larger than the sum of its proper divisors (810449).

4052215 is an equidigital number, since it uses as much as digits as its factorization.

4052215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810448.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4052215 is about 2013.0114257003. The cubic root of 4052215 is about 159.4278392015.

Adding to 4052215 its reverse (5122504), we get a palindrome (9174719).

The spelling of 4052215 in words is "four million, fifty-two thousand, two hundred fifteen".