15000047 has 4 divisors (see below), whose sum is σ = 15517320. Its totient is φ = 14482776.

The previous prime is 15000031. The next prime is 15000053. The reversal of 15000047 is 74000051.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15000047 - 2⁴ = 15000031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14999989 and 15000034.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15000017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258593 + ... + 258650.

It is an arithmetic number, because the mean of its divisors is an integer number (3879330).

Almost surely, 2^15000047 is an apocalyptic number.

15000047 is a deficient number, since it is larger than the sum of its proper divisors (517273).

15000047 is an equidigital number, since it uses as much as digits as its factorization.

15000047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517272.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 15000047 is about 3872.9894138766. The cubic root of 15000047 is about 246.6214650149.

Adding to 15000047 its reverse (74000051), we get a palindrome (89000098).

The spelling of 15000047 in words is "fifteen million, forty-seven", and thus it is an aban number and an uban number.