13105541 has 2 divisors, whose sum is σ = 13105542. Its totient is φ = 13105540.

The previous prime is 13105537. The next prime is 13105549. The reversal of 13105541 is 14550131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13032100 + 73441 = 3610^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 13105541 - 2² = 13105537 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13105549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552770 + 6552771.

It is an arithmetic number, because the mean of its divisors is an integer number (6552771).

Almost surely, 2^13105541 is an apocalyptic number.

It is an amenable number.

13105541 is a deficient number, since it is larger than the sum of its proper divisors (1).

13105541 is an equidigital number, since it uses as much as digits as its factorization.

13105541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 13105541 is about 3620.1575932547. The cubic root of 13105541 is about 235.7680678887.

Adding to 13105541 its reverse (14550131), we get a palindrome (27655672).

The spelling of 13105541 in words is "thirteen million, one hundred five thousand, five hundred forty-one".