84133541 has 2 divisors, whose sum is σ = 84133542. Its totient is φ = 84133540.

The previous prime is 84133537. The next prime is 84133547. The reversal of 84133541 is 14533148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83192641 + 940900 = 9121^2 + 970^2 .

It is a cyclic number.

It is not a de Polignac number, because 84133541 - 2² = 84133537 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84133547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42066770 + 42066771.

It is an arithmetic number, because the mean of its divisors is an integer number (42066771).

Almost surely, 2^84133541 is an apocalyptic number.

It is an amenable number.

84133541 is a deficient number, since it is larger than the sum of its proper divisors (1).

84133541 is an equidigital number, since it uses as much as digits as its factorization.

84133541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 84133541 is about 9172.4337555526. The cubic root of 84133541 is about 438.1838726058.

Adding to 84133541 its reverse (14533148), we get a palindrome (98666689).

The spelling of 84133541 in words is "eighty-four million, one hundred thirty-three thousand, five hundred forty-one".