13151247 has 8 divisors (see below), whose sum is σ = 17585280. Its totient is φ = 8742360.

The previous prime is 13151233. The next prime is 13151269. The reversal of 13151247 is 74215131.

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

It is a de Polignac number, because none of the positive numbers 2^k-13151247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13151227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5029 + ... + 7182.

It is an arithmetic number, because the mean of its divisors is an integer number (2198160).

Almost surely, 2^13151247 is an apocalyptic number.

13151247 is a deficient number, since it is larger than the sum of its proper divisors (4434033).

13151247 is a wasteful number, since it uses less digits than its factorization.

13151247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12573.

The product of its digits is 840, while the sum is 24.

The square root of 13151247 is about 3626.4648074950. The cubic root of 13151247 is about 236.0418328123.

Adding to 13151247 its reverse (74215131), we get a palindrome (87366378).

It can be divided in two parts, 1315124 and 7, that added together give a palindrome (1315131).

The spelling of 13151247 in words is "thirteen million, one hundred fifty-one thousand, two hundred forty-seven".