65072185 has 8 divisors (see below), whose sum is σ = 78159240. Its totient is φ = 52009344.

The previous prime is 65072167. The next prime is 65072197. The reversal of 65072185 is 58127056.

It can be written as a sum of positive squares in 4 ways, for example, as 2298256 + 62773929 = 1516^2 + 7923^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 65072185 - 2⁵ = 65072153 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 65072185.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511 + ... + 11419.

It is an arithmetic number, because the mean of its divisors is an integer number (9769905).

Almost surely, 2^65072185 is an apocalyptic number.

It is an amenable number.

65072185 is a deficient number, since it is larger than the sum of its proper divisors (13087055).

65072185 is a wasteful number, since it uses less digits than its factorization.

65072185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12107.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 65072185 is about 8066.7332297529. The cubic root of 65072185 is about 402.2213598157.

The spelling of 65072185 in words is "sixty-five million, seventy-two thousand, one hundred eighty-five".