86131433 has 2 divisors, whose sum is σ = 86131434. Its totient is φ = 86131432.

The previous prime is 86131429. The next prime is 86131477. The reversal of 86131433 is 33413168.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73479184 + 12652249 = 8572^2 + 3557^2 .

It is a cyclic number.

It is not a de Polignac number, because 86131433 - 2² = 86131429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86131396 and 86131405.

It is not a weakly prime, because it can be changed into another prime (86131483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43065716 + 43065717.

It is an arithmetic number, because the mean of its divisors is an integer number (43065717).

Almost surely, 2^86131433 is an apocalyptic number.

It is an amenable number.

86131433 is a deficient number, since it is larger than the sum of its proper divisors (1).

86131433 is an equidigital number, since it uses as much as digits as its factorization.

86131433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 86131433 is about 9280.7021824860. The cubic root of 86131433 is about 441.6252445469.

The spelling of 86131433 in words is "eighty-six million, one hundred thirty-one thousand, four hundred thirty-three".