86156401 has 2 divisors, whose sum is σ = 86156402. Its totient is φ = 86156400.

The previous prime is 86156381. The next prime is 86156417. The reversal of 86156401 is 10465168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86044176 + 112225 = 9276^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 86156401 - 2¹¹ = 86154353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86156201) 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, 43078200 + 43078201.

It is an arithmetic number, because the mean of its divisors is an integer number (43078201).

Almost surely, 2^86156401 is an apocalyptic number.

It is an amenable number.

86156401 is a deficient number, since it is larger than the sum of its proper divisors (1).

86156401 is an equidigital number, since it uses as much as digits as its factorization.

86156401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 86156401 is about 9282.0472418535. The cubic root of 86156401 is about 441.6679135758.

The spelling of 86156401 in words is "eighty-six million, one hundred fifty-six thousand, four hundred one".