84061157 has 2 divisors, whose sum is σ = 84061158. Its totient is φ = 84061156.

The previous prime is 84061129. The next prime is 84061163. The reversal of 84061157 is 75116048.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83740801 + 320356 = 9151^2 + 566^2 .

It is a cyclic number.

It is not a de Polignac number, because 84061157 - 2⁶ = 84061093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84063157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42030578 + 42030579.

It is an arithmetic number, because the mean of its divisors is an integer number (42030579).

Almost surely, 2^84061157 is an apocalyptic number.

It is an amenable number.

84061157 is a deficient number, since it is larger than the sum of its proper divisors (1).

84061157 is an equidigital number, since it uses as much as digits as its factorization.

84061157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 84061157 is about 9168.4871707387. The cubic root of 84061157 is about 438.0581732259.

The spelling of 84061157 in words is "eighty-four million, sixty-one thousand, one hundred fifty-seven".