4523215 has 4 divisors (see below), whose sum is σ = 5427864. Its totient is φ = 3618568.

The previous prime is 4523201. The next prime is 4523221. The reversal of 4523215 is 5123254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5123254 = 2 ⋅2561627.

It is a cyclic number.

It is not a de Polignac number, because 4523215 - 2¹³ = 4515023 is a prime.

It is a Duffinian number.

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, 452317 + ... + 452326.

It is an arithmetic number, because the mean of its divisors is an integer number (1356966).

Almost surely, 2^4523215 is an apocalyptic number.

4523215 is a deficient number, since it is larger than the sum of its proper divisors (904649).

4523215 is an equidigital number, since it uses as much as digits as its factorization.

4523215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904648.

The product of its digits is 1200, while the sum is 22.

The square root of 4523215 is about 2126.7851325416. The cubic root of 4523215 is about 165.3797802250.

Adding to 4523215 its reverse (5123254), we get a palindrome (9646469).

The spelling of 4523215 in words is "four million, five hundred twenty-three thousand, two hundred fifteen".