12541235542 has 16 divisors (see below), whose sum is σ = 21229678800. Its totient is φ = 5503990240.

The previous prime is 12541235537. The next prime is 12541235561. The reversal of 12541235542 is 24553214521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12541235498 and 12541235507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9827917 + ... + 9829192.

It is an arithmetic number, because the mean of its divisors is an integer number (1326854925).

Almost surely, 2^12541235542 is an apocalyptic number.

12541235542 is a deficient number, since it is larger than the sum of its proper divisors (8688443258).

12541235542 is a wasteful number, since it uses less digits than its factorization.

12541235542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19657151.

The product of its digits is 48000, while the sum is 34.

The spelling of 12541235542 in words is "twelve billion, five hundred forty-one million, two hundred thirty-five thousand, five hundred forty-two".