215045143 has 8 divisors (see below), whose sum is σ = 218539760. Its totient is φ = 211559040.

The previous prime is 215045137. The next prime is 215045153. The reversal of 215045143 is 341540512.

It is a happy number.

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 215045143 - 2¹³ = 215036951 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 (215045153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66013 + ... + 69193.

It is an arithmetic number, because the mean of its divisors is an integer number (27317470).

Almost surely, 2^215045143 is an apocalyptic number.

215045143 is a deficient number, since it is larger than the sum of its proper divisors (3494617).

215045143 is a wasteful number, since it uses less digits than its factorization.

215045143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 215045143 is about 14664.4175813429. The cubic root of 215045143 is about 599.1145671386.

Adding to 215045143 its reverse (341540512), we get a palindrome (556585655).

The spelling of 215045143 in words is "two hundred fifteen million, forty-five thousand, one hundred forty-three".