3130215 has 32 divisors (see below), whose sum is σ = 5571072. Its totient is φ = 1488000.

The previous prime is 3130207. The next prime is 3130229. The reversal of 3130215 is 5120313.

It is a happy number.

It is not a de Polignac number, because 3130215 - 2³ = 3130207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3130194 and 3130203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9910 + ... + 10220.

It is an arithmetic number, because the mean of its divisors is an integer number (174096).

Almost surely, 2^3130215 is an apocalyptic number.

3130215 is a deficient number, since it is larger than the sum of its proper divisors (2440857).

3130215 is a wasteful number, since it uses less digits than its factorization.

3130215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 3130215 is about 1769.2413628445. The cubic root of 3130215 is about 146.2821683932.

Adding to 3130215 its reverse (5120313), we get a palindrome (8250528).

The spelling of 3130215 in words is "three million, one hundred thirty thousand, two hundred fifteen".