12541541 has 2 divisors, whose sum is σ = 12541542. Its totient is φ = 12541540.

The previous prime is 12541537. The next prime is 12541561. The reversal of 12541541 is 14514521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8008900 + 4532641 = 2830^2 + 2129^2 .

It is a cyclic number.

It is not a de Polignac number, because 12541541 - 2² = 12541537 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12541561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6270770 + 6270771.

It is an arithmetic number, because the mean of its divisors is an integer number (6270771).

Almost surely, 2^12541541 is an apocalyptic number.

It is an amenable number.

12541541 is a deficient number, since it is larger than the sum of its proper divisors (1).

12541541 is an equidigital number, since it uses as much as digits as its factorization.

12541541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 800, while the sum is 23.

The square root of 12541541 is about 3541.4038176972. The cubic root of 12541541 is about 232.3362457354.

The spelling of 12541541 in words is "twelve million, five hundred forty-one thousand, five hundred forty-one".