12542431 has 8 divisors (see below), whose sum is σ = 13745664. Its totient is φ = 11349720.

The previous prime is 12542423. The next prime is 12542437. The reversal of 12542431 is 13424521.

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

It is a cyclic number.

It is not a de Polignac number, because 12542431 - 2³ = 12542423 is a prime.

It is a super-2 number, since 2×12542431² = 314625150779522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (1718208).

Almost surely, 2^12542431 is an apocalyptic number.

12542431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12542431 is a deficient number, since it is larger than the sum of its proper divisors (1203233).

12542431 is a wasteful number, since it uses less digits than its factorization.

12542431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261.

The product of its digits is 960, while the sum is 22.

The square root of 12542431 is about 3541.5294718525. The cubic root of 12542431 is about 232.3417414548.

Adding to 12542431 its reverse (13424521), we get a palindrome (25966952).

The spelling of 12542431 in words is "twelve million, five hundred forty-two thousand, four hundred thirty-one".