84201541 has 2 divisors, whose sum is σ = 84201542. Its totient is φ = 84201540.

The previous prime is 84201503. The next prime is 84201547. The reversal of 84201541 is 14510248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79121025 + 5080516 = 8895^2 + 2254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84201541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84201547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42100770 + 42100771.

It is an arithmetic number, because the mean of its divisors is an integer number (42100771).

Almost surely, 2^84201541 is an apocalyptic number.

It is an amenable number.

84201541 is a deficient number, since it is larger than the sum of its proper divisors (1).

84201541 is an equidigital number, since it uses as much as digits as its factorization.

84201541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 84201541 is about 9176.1397657185. The cubic root of 84201541 is about 438.3018932312.

Adding to 84201541 its reverse (14510248), we get a palindrome (98711789).

The spelling of 84201541 in words is "eighty-four million, two hundred one thousand, five hundred forty-one".