13820541 has 16 divisors (see below), whose sum is σ = 22299264. Its totient is φ = 7432704.

The previous prime is 13820531. The next prime is 13820551. The reversal of 13820541 is 14502831.

It is an interprime number because it is at equal distance from previous prime (13820531) and next prime (13820551).

It is not a de Polignac number, because 13820541 - 2⁵ = 13820509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13820531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19000 + ... + 19713.

It is an arithmetic number, because the mean of its divisors is an integer number (1393704).

Almost surely, 2^13820541 is an apocalyptic number.

It is an amenable number.

13820541 is a deficient number, since it is larger than the sum of its proper divisors (8478723).

13820541 is a wasteful number, since it uses less digits than its factorization.

13820541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38740.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 13820541 is about 3717.5988218203. The cubic root of 13820541 is about 239.9799809691.

The spelling of 13820541 in words is "thirteen million, eight hundred twenty thousand, five hundred forty-one".