12151447 has 16 divisors (see below), whose sum is σ = 16042752. Its totient is φ = 8910720.

The previous prime is 12151417. The next prime is 12151453. The reversal of 12151447 is 74415121.

It is not a de Polignac number, because 12151447 - 2¹⁹ = 11627159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3333 + ... + 5950.

It is an arithmetic number, because the mean of its divisors is an integer number (1002672).

Almost surely, 2^12151447 is an apocalyptic number.

12151447 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12151447 is a deficient number, since it is larger than the sum of its proper divisors (3891305).

12151447 is a wasteful number, since it uses less digits than its factorization.

12151447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9318.

The product of its digits is 1120, while the sum is 25.

The square root of 12151447 is about 3485.8925686257. The cubic root of 12151447 is about 229.9019556912.

Adding to 12151447 its reverse (74415121), we get a palindrome (86566568).

It can be divided in two parts, 1215 and 1447, that added together give a palindrome (2662).

The spelling of 12151447 in words is "twelve million, one hundred fifty-one thousand, four hundred forty-seven".