65085187 has 4 divisors (see below), whose sum is σ = 66598840. Its totient is φ = 63571536.

The previous prime is 65085173. The next prime is 65085191. The reversal of 65085187 is 78158056.

65085187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 65085187 - 2¹⁵ = 65052419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65085287) 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 in 3 ways as a sum of consecutive naturals, for example, 756762 + ... + 756847.

It is an arithmetic number, because the mean of its divisors is an integer number (16649710).

Almost surely, 2^65085187 is an apocalyptic number.

65085187 is a deficient number, since it is larger than the sum of its proper divisors (1513653).

65085187 is a wasteful number, since it uses less digits than its factorization.

65085187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513652.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 65085187 is about 8067.5390919412. The cubic root of 65085187 is about 402.2481471639.

The spelling of 65085187 in words is "sixty-five million, eighty-five thousand, one hundred eighty-seven".