85458945 has 32 divisors (see below), whose sum is σ = 160642944. Its totient is φ = 38246400.

The previous prime is 85458929. The next prime is 85458959. The reversal of 85458945 is 54985458.

It is not a de Polignac number, because 85458945 - 2⁴ = 85458929 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 85458894 and 85458903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17776 + ... + 22065.

It is an arithmetic number, because the mean of its divisors is an integer number (5020092).

It is a Proth number, since it is equal to 163 ⋅ 2¹⁹ + 1 and 163 < 2¹⁹.

Almost surely, 2^85458945 is an apocalyptic number.

It is an amenable number.

85458945 is a deficient number, since it is larger than the sum of its proper divisors (75183999).

85458945 is a wasteful number, since it uses less digits than its factorization.

85458945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39873.

The product of its digits is 1152000, while the sum is 48.

The square root of 85458945 is about 9244.4007377439. The cubic root of 85458945 is about 440.4728817487.

The spelling of 85458945 in words is "eighty-five million, four hundred fifty-eight thousand, nine hundred forty-five".