15145047 has 12 divisors (see below), whose sum is σ = 22630920. Its totient is φ = 9748368.

The previous prime is 15145043. The next prime is 15145049. The reversal of 15145047 is 74054151.

It is a happy number.

15145047 is a `hidden beast` number, since 151 + 4 + 504 + 7 = 666.

It is not a de Polignac number, because 15145047 - 2² = 15145043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15145047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15145043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28753 + ... + 29274.

It is an arithmetic number, because the mean of its divisors is an integer number (1885910).

Almost surely, 2^15145047 is an apocalyptic number.

15145047 is a deficient number, since it is larger than the sum of its proper divisors (7485873).

15145047 is a wasteful number, since it uses less digits than its factorization.

15145047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58062 (or 58059 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 15145047 is about 3891.6637830111. The cubic root of 15145047 is about 247.4135847687.

Adding to 15145047 its reverse (74054151), we get a palindrome (89199198).

It can be divided in two parts, 1514 and 5047, that added together give a 8-th power (6561 = 3⁸).

The spelling of 15145047 in words is "fifteen million, one hundred forty-five thousand, forty-seven".