15315147 has 24 divisors (see below), whose sum is σ = 24186240. Its totient is φ = 9296640.

The previous prime is 15315119. The next prime is 15315149. The reversal of 15315147 is 74151351.

It is not a de Polignac number, because 15315147 - 2²² = 11120843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15315147.

It is not an unprimeable number, because it can be changed into a prime (15315149) 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 23 ways as a sum of consecutive naturals, for example, 3129 + ... + 6357.

It is an arithmetic number, because the mean of its divisors is an integer number (1007760).

Almost surely, 2^15315147 is an apocalyptic number.

15315147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

15315147 is a deficient number, since it is larger than the sum of its proper divisors (8871093).

15315147 is a wasteful number, since it uses less digits than its factorization.

15315147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283 (or 3280 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 15315147 is about 3913.4571672627. The cubic root of 15315147 is about 248.3364050288.

Adding to 15315147 its reverse (74151351), we get a palindrome (89466498).

The spelling of 15315147 in words is "fifteen million, three hundred fifteen thousand, one hundred forty-seven".