4123215 has 24 divisors (see below), whose sum is σ = 7272720. Its totient is φ = 2160384.

The previous prime is 4123211. The next prime is 4123253. The reversal of 4123215 is 5123214.

It is not a de Polignac number, because 4123215 - 2² = 4123211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4123211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1879 + ... + 3431.

It is an arithmetic number, because the mean of its divisors is an integer number (303030).

Almost surely, 2^4123215 is an apocalyptic number.

4123215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4123215 is a deficient number, since it is larger than the sum of its proper divisors (3149505).

4123215 is a wasteful number, since it uses less digits than its factorization.

4123215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623 (or 1620 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 4123215 is about 2030.5701169869. The cubic root of 4123215 is about 160.3535800358.

Adding to 4123215 its reverse (5123214), we get a palindrome (9246429).

Subtracting 4123215 from its reverse (5123214), we obtain a palindrome (999999).

The spelling of 4123215 in words is "four million, one hundred twenty-three thousand, two hundred fifteen".