3120215 has 16 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 2101920.

The previous prime is 3120137. The next prime is 3120217. The reversal of 3120215 is 5120213.

It is a happy number.

It is not a de Polignac number, because 3120215 - 2¹⁸ = 2858071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3120215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310 + ... + 2820.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^3120215 is an apocalyptic number.

3120215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3120215 is a deficient number, since it is larger than the sum of its proper divisors (1234345).

3120215 is a wasteful number, since it uses less digits than its factorization.

3120215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 3120215 is about 1766.4130321077. The cubic root of 3120215 is about 146.1262278590.

Adding to 3120215 its reverse (5120213), we get a palindrome (8240428).

The spelling of 3120215 in words is "three million, one hundred twenty thousand, two hundred fifteen".