83842541 has 2 divisors, whose sum is σ = 83842542. Its totient is φ = 83842540.

The previous prime is 83842537. The next prime is 83842597. The reversal of 83842541 is 14524838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57320041 + 26522500 = 7571^2 + 5150^2 .

It is a cyclic number.

It is not a de Polignac number, because 83842541 - 2² = 83842537 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83842511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41921270 + 41921271.

It is an arithmetic number, because the mean of its divisors is an integer number (41921271).

Almost surely, 2^83842541 is an apocalyptic number.

It is an amenable number.

83842541 is a deficient number, since it is larger than the sum of its proper divisors (1).

83842541 is an equidigital number, since it uses as much as digits as its factorization.

83842541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 35.

The square root of 83842541 is about 9156.5572678819. The cubic root of 83842541 is about 437.6780941324.

The spelling of 83842541 in words is "eighty-three million, eight hundred forty-two thousand, five hundred forty-one".