86199149 has 2 divisors, whose sum is σ = 86199150. Its totient is φ = 86199148.

The previous prime is 86199137. The next prime is 86199151. The reversal of 86199149 is 94199168.

86199149 is nontrivially palindromic in base 9.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65496649 + 20702500 = 8093^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 86199149 - 2¹⁶ = 86133613 is a prime.

Together with 86199151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86199109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43099574 + 43099575.

It is an arithmetic number, because the mean of its divisors is an integer number (43099575).

Almost surely, 2^86199149 is an apocalyptic number.

It is an amenable number.

86199149 is a deficient number, since it is larger than the sum of its proper divisors (1).

86199149 is an equidigital number, since it uses as much as digits as its factorization.

86199149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 47.

The square root of 86199149 is about 9284.3496810493. The cubic root of 86199149 is about 441.7409485757.

The spelling of 86199149 in words is "eighty-six million, one hundred ninety-nine thousand, one hundred forty-nine".