15000006 has 32 divisors (see below), whose sum is σ = 36092160. Its totient is φ = 4059936.

The previous prime is 14999981. The next prime is 15000017. The reversal of 15000006 is 60000051.

15000006 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 14999955 and 15000000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8601 + ... + 10196.

It is an arithmetic number, because the mean of its divisors is an integer number (1127880).

Almost surely, 2^15000006 is an apocalyptic number.

15000006 is an abundant number, since it is smaller than the sum of its proper divisors (21092154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15000006 is a wasteful number, since it uses less digits than its factorization.

15000006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18828.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 15000006 is about 3872.9841208040. The cubic root of 15000006 is about 246.6212403159.

Adding to 15000006 its reverse (60000051), we get a palindrome (75000057).

It can be divided in two parts, 1500000 and 6, that multiplied together give a square (9000000 = 3000²).

The spelling of 15000006 in words is "fifteen million, six", and thus it is an aban number and an uban number.