86128241 has 2 divisors, whose sum is σ = 86128242. Its totient is φ = 86128240.

The previous prime is 86128219. The next prime is 86128243. The reversal of 86128241 is 14282168.

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., 76387600 + 9740641 = 8740^2 + 3121^2 .

It is a cyclic number.

It is not a de Polignac number, because 86128241 - 2²² = 81933937 is a prime.

Together with 86128243, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86128198 and 86128207.

It is not a weakly prime, because it can be changed into another prime (86128243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43064120 + 43064121.

It is an arithmetic number, because the mean of its divisors is an integer number (43064121).

Almost surely, 2^86128241 is an apocalyptic number.

It is an amenable number.

86128241 is a deficient number, since it is larger than the sum of its proper divisors (1).

86128241 is an equidigital number, since it uses as much as digits as its factorization.

86128241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 32.

The square root of 86128241 is about 9280.5302111463. The cubic root of 86128241 is about 441.6197889885.

The spelling of 86128241 in words is "eighty-six million, one hundred twenty-eight thousand, two hundred forty-one".