12028015 has 8 divisors (see below), whose sum is σ = 14452848. Its totient is φ = 9609600.

The previous prime is 12028013. The next prime is 12028019. The reversal of 12028015 is 51082021.

12028015 = 1549² + 1550² + ... + 1553².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12028015 - 2¹ = 12028013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12027983 and 12028001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5004 + ... + 7006.

It is an arithmetic number, because the mean of its divisors is an integer number (1806606).

Almost surely, 2^12028015 is an apocalyptic number.

12028015 is a deficient number, since it is larger than the sum of its proper divisors (2424833).

12028015 is a wasteful number, since it uses less digits than its factorization.

12028015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 12028015 is about 3468.1428747963. The cubic root of 12028015 is about 229.1208720983.

It can be divided in two parts, 120280 and 15, that added together give a triangular number (120295 = T₄₉₀).

The spelling of 12028015 in words is "twelve million, twenty-eight thousand, fifteen".