85414565 has 4 divisors (see below), whose sum is σ = 102497484. Its totient is φ = 68331648.

The previous prime is 85414543. The next prime is 85414573. The reversal of 85414565 is 56541458.

It is a happy number.

It is a Cunningham number, because it is equal to 9242²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30758116 + 54656449 = 5546^2 + 7393^2 .

It is a cyclic number.

It is not a de Polignac number, because 85414565 - 2¹⁰ = 85413541 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 8541452 + ... + 8541461.

It is an arithmetic number, because the mean of its divisors is an integer number (25624371).

Almost surely, 2^85414565 is an apocalyptic number.

It is an amenable number.

85414565 is a deficient number, since it is larger than the sum of its proper divisors (17082919).

85414565 is a wasteful number, since it uses less digits than its factorization.

85414565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17082918.

The product of its digits is 96000, while the sum is 38.

The square root of 85414565 is about 9242.0000541008. Note that the first 4 decimals coincide. The cubic root of 85414565 is about 440.3966206803.

The spelling of 85414565 in words is "eighty-five million, four hundred fourteen thousand, five hundred sixty-five".