145852585 has 8 divisors (see below), whose sum is σ = 176756616. Its totient is φ = 115526400.

The previous prime is 145852579. The next prime is 145852657. The reversal of 145852585 is 585258541.

It can be written as a sum of positive squares in 4 ways, for example, as 94400656 + 51451929 = 9716^2 + 7173^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145852585 - 2⁹ = 145852073 is a prime.

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

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 143904 + ... + 144913.

It is an arithmetic number, because the mean of its divisors is an integer number (22094577).

Almost surely, 2^145852585 is an apocalyptic number.

It is an amenable number.

145852585 is a deficient number, since it is larger than the sum of its proper divisors (30904031).

145852585 is a wasteful number, since it uses less digits than its factorization.

145852585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288923.

The product of its digits is 320000, while the sum is 43.

The square root of 145852585 is about 12076.9443569141. The cubic root of 145852585 is about 526.3864607759.

The spelling of 145852585 in words is "one hundred forty-five million, eight hundred fifty-two thousand, five hundred eighty-five".