86138453 has 2 divisors, whose sum is σ = 86138454. Its totient is φ = 86138452.

The previous prime is 86138401. The next prime is 86138489. The reversal of 86138453 is 35483168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64673764 + 21464689 = 8042^2 + 4633^2 .

It is a cyclic number.

It is not a de Polignac number, because 86138453 - 2⁶ = 86138389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86138953) 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, 43069226 + 43069227.

It is an arithmetic number, because the mean of its divisors is an integer number (43069227).

Almost surely, 2^86138453 is an apocalyptic number.

It is an amenable number.

86138453 is a deficient number, since it is larger than the sum of its proper divisors (1).

86138453 is an equidigital number, since it uses as much as digits as its factorization.

86138453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 86138453 is about 9281.0803789214. The cubic root of 86138453 is about 441.6372421994.

The spelling of 86138453 in words is "eighty-six million, one hundred thirty-eight thousand, four hundred fifty-three".