215092343 has 4 divisors (see below), whose sum is σ = 224444208. Its totient is φ = 205740480.

The previous prime is 215092309. The next prime is 215092349. The reversal of 215092343 is 343290512.

215092343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215092343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215092349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4675898 + ... + 4675943.

It is an arithmetic number, because the mean of its divisors is an integer number (56111052).

Almost surely, 2^215092343 is an apocalyptic number.

215092343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

215092343 is a deficient number, since it is larger than the sum of its proper divisors (9351865).

215092343 is an equidigital number, since it uses as much as digits as its factorization.

215092343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9351864.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 215092343 is about 14666.0268307405. The cubic root of 215092343 is about 599.1583969109.

The spelling of 215092343 in words is "two hundred fifteen million, ninety-two thousand, three hundred forty-three".