215067085 has 8 divisors (see below), whose sum is σ = 273261816. Its totient is φ = 161932800.

The previous prime is 215067079. The next prime is 215067107. The reversal of 215067085 is 580760512.

It can be written as a sum of positive squares in 4 ways, for example, as 2082249 + 212984836 = 1443^2 + 14594^2 .

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

It is not a de Polignac number, because 215067085 - 2⁵ = 215067053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215067085.

It is a congruent number.

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, 1265016 + ... + 1265185.

It is an arithmetic number, because the mean of its divisors is an integer number (34157727).

Almost surely, 2^215067085 is an apocalyptic number.

It is an amenable number.

215067085 is a deficient number, since it is larger than the sum of its proper divisors (58194731).

215067085 is a wasteful number, since it uses less digits than its factorization.

215067085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530223.

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

The square root of 215067085 is about 14665.1656997117. The cubic root of 215067085 is about 599.1349432088.

The spelling of 215067085 in words is "two hundred fifteen million, sixty-seven thousand, eighty-five".