215012069 has 8 divisors (see below), whose sum is σ = 223936128. Its totient is φ = 206251920.

The previous prime is 215012041. The next prime is 215012093. The reversal of 215012069 is 960210512.

215012069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 215012069 - 2²⁴ = 198234853 is a prime.

It is a super-2 number, since 2×215012069² = 92460379631321522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215012029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38297 + ... + 43550.

It is an arithmetic number, because the mean of its divisors is an integer number (27992016).

Almost surely, 2^215012069 is an apocalyptic number.

It is an amenable number.

215012069 is a deficient number, since it is larger than the sum of its proper divisors (8924059).

215012069 is an equidigital number, since it uses as much as digits as its factorization.

215012069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81955.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 215012069 is about 14663.2898423239. The cubic root of 215012069 is about 599.0838509041.

The spelling of 215012069 in words is "two hundred fifteen million, twelve thousand, sixty-nine".