215040943 has 8 divisors (see below), whose sum is σ = 231908768. Its totient is φ = 198219744.

The previous prime is 215040937. The next prime is 215040953. The reversal of 215040943 is 349040512.

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 215040943 - 2¹³ = 215032751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215040953) 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, 1755 + ... + 20812.

It is an arithmetic number, because the mean of its divisors is an integer number (28988596).

Almost surely, 2^215040943 is an apocalyptic number.

215040943 is a deficient number, since it is larger than the sum of its proper divisors (16867825).

215040943 is a wasteful number, since it uses less digits than its factorization.

215040943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23313.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 215040943 is about 14664.2743768657. The cubic root of 215040943 is about 599.1106667211.

The spelling of 215040943 in words is "two hundred fifteen million, forty thousand, nine hundred forty-three".