12641151 has 4 divisors (see below), whose sum is σ = 16854872. Its totient is φ = 8427432.

The previous prime is 12641147. The next prime is 12641171. The reversal of 12641151 is 15114621.

12641151 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15114621 = 3 ⋅5038207.

It is not a de Polignac number, because 12641151 - 2² = 12641147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106856 + ... + 2106861.

It is an arithmetic number, because the mean of its divisors is an integer number (4213718).

Almost surely, 2^12641151 is an apocalyptic number.

12641151 is a deficient number, since it is larger than the sum of its proper divisors (4213721).

12641151 is an equidigital number, since it uses as much as digits as its factorization.

12641151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213720.

The product of its digits is 240, while the sum is 21.

The square root of 12641151 is about 3555.4396352631. The cubic root of 12641151 is about 232.9497272837.

Adding to 12641151 its reverse (15114621), we get a palindrome (27755772).

It can be divided in two parts, 1264 and 1151, that added together give a triangular number (2415 = T₆₉).

The spelling of 12641151 in words is "twelve million, six hundred forty-one thousand, one hundred fifty-one".