12541431 has 16 divisors (see below), whose sum is σ = 19289600. Its totient is φ = 7099488.

The previous prime is 12541411. The next prime is 12541439. The reversal of 12541431 is 13414521.

It is not a de Polignac number, because 12541431 - 2⁷ = 12541303 is a prime.

It is a super-2 number, since 2×12541431² = 314574983055522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12541398 and 12541407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12541439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451 + ... + 5028.

It is an arithmetic number, because the mean of its divisors is an integer number (1205600).

Almost surely, 2^12541431 is an apocalyptic number.

12541431 is a deficient number, since it is larger than the sum of its proper divisors (6748169).

12541431 is a wasteful number, since it uses less digits than its factorization.

12541431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598.

The product of its digits is 480, while the sum is 21.

The square root of 12541431 is about 3541.3882870987. The cubic root of 12541431 is about 232.3355664712.

Adding to 12541431 its reverse (13414521), we get a palindrome (25955952).

The spelling of 12541431 in words is "twelve million, five hundred forty-one thousand, four hundred thirty-one".