13020541 has 2 divisors, whose sum is σ = 13020542. Its totient is φ = 13020540.

The previous prime is 13020523. The next prime is 13020577. The reversal of 13020541 is 14502031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7958041 + 5062500 = 2821^2 + 2250^2 .

It is a cyclic number.

It is not a de Polignac number, because 13020541 - 2¹¹ = 13018493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13020641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510270 + 6510271.

It is an arithmetic number, because the mean of its divisors is an integer number (6510271).

Almost surely, 2^13020541 is an apocalyptic number.

It is an amenable number.

13020541 is a deficient number, since it is larger than the sum of its proper divisors (1).

13020541 is an equidigital number, since it uses as much as digits as its factorization.

13020541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 13020541 is about 3608.3986753129. The cubic root of 13020541 is about 235.2572465914.

Adding to 13020541 its reverse (14502031), we get a palindrome (27522572).

The spelling of 13020541 in words is "thirteen million, twenty thousand, five hundred forty-one".