85146403 has 2 divisors, whose sum is σ = 85146404. Its totient is φ = 85146402.

The previous prime is 85146401. The next prime is 85146409. The reversal of 85146403 is 30464158.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85146403 - 2¹ = 85146401 is a prime.

Together with 85146401, it forms a pair of twin primes.

It is equal to p_4951714 and since 85146403 and 4951714 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (85146401) 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, 42573201 + 42573202.

It is an arithmetic number, because the mean of its divisors is an integer number (42573202).

Almost surely, 2^85146403 is an apocalyptic number.

85146403 is a deficient number, since it is larger than the sum of its proper divisors (1).

85146403 is an equidigital number, since it uses as much as digits as its factorization.

85146403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 85146403 is about 9227.4808588260. The cubic root of 85146403 is about 439.9352573474.

The spelling of 85146403 in words is "eighty-five million, one hundred forty-six thousand, four hundred three".