12151456 has 24 divisors (see below), whose sum is σ = 24482304. Its totient is φ = 5933760.

The previous prime is 12151453. The next prime is 12151459. The reversal of 12151456 is 65415121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12151453) and next prime (12151459).

It is a self number, because there is not a number n which added to its sum of digits gives 12151456.

It is not an unprimeable number, because it can be changed into a prime (12151453) 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 3 ways as a sum of consecutive naturals, for example, 3040 + ... + 5791.

It is an arithmetic number, because the mean of its divisors is an integer number (1020096).

Almost surely, 2^12151456 is an apocalyptic number.

12151456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12151456 is an abundant number, since it is smaller than the sum of its proper divisors (12330848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12151456 is an equidigital number, since it uses as much as digits as its factorization.

12151456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8884 (or 8876 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 12151456 is about 3485.8938595431. The cubic root of 12151456 is about 229.9020124503.

Adding to 12151456 its reverse (65415121), we get a palindrome (77566577).

The spelling of 12151456 in words is "twelve million, one hundred fifty-one thousand, four hundred fifty-six".