3213015 has 16 divisors (see below), whose sum is σ = 5536608. Its totient is φ = 1581696.

The previous prime is 3213011. The next prime is 3213029. The reversal of 3213015 is 5103123.

It is a happy number.

3213015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3213015 - 2² = 3213011 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 3212985 and 3213003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8044 + ... + 8433.

It is an arithmetic number, because the mean of its divisors is an integer number (346038).

Almost surely, 2^3213015 is an apocalyptic number.

3213015 is a deficient number, since it is larger than the sum of its proper divisors (2323593).

3213015 is a wasteful number, since it uses less digits than its factorization.

3213015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16498.

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

The square root of 3213015 is about 1792.4884936869. The cubic root of 3213015 is about 147.5607716639.

Adding to 3213015 its reverse (5103123), we get a palindrome (8316138).

The spelling of 3213015 in words is "three million, two hundred thirteen thousand, fifteen".