43215085 has 8 divisors (see below), whose sum is σ = 53531136. Its totient is φ = 33456720.

The previous prime is 43215079. The next prime is 43215103. The reversal of 43215085 is 58051234.

43215085 = T₅₃₆₆ + T₅₃₆₇ + T₅₃₆₈.

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

It is not a de Polignac number, because 43215085 - 2¹⁵ = 43182317 is a prime.

It is a Duffinian number.

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, 139249 + ... + 139558.

It is an arithmetic number, because the mean of its divisors is an integer number (6691392).

Almost surely, 2^43215085 is an apocalyptic number.

43215085 is the 5368-th centered triangular number.

It is an amenable number.

43215085 is a deficient number, since it is larger than the sum of its proper divisors (10316051).

43215085 is a wasteful number, since it uses less digits than its factorization.

43215085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278843.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 43215085 is about 6573.8181447314. The cubic root of 43215085 is about 350.9229653212.

The spelling of 43215085 in words is "forty-three million, two hundred fifteen thousand, eighty-five".