215047 has 8 divisors (see below), whose sum is σ = 253952. Its totient is φ = 178200.

The previous prime is 214993. The next prime is 215051. The reversal of 215047 is 740512.

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 215047 - 2¹¹ = 212999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279 + ... + 712.

It is an arithmetic number, because the mean of its divisors is an integer number (31744).

215047 is a Friedman number, since it can be written as 7+210*4^5, using all its digits and the basic arithmetic operations.

2²¹⁵⁰⁴⁷ is an apocalyptic number.

215047 is a deficient number, since it is larger than the sum of its proper divisors (38905).

215047 is an equidigital number, since it uses as much as digits as its factorization.

215047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 215047 is about 463.7316034087. The cubic root of 215047 is about 59.9116291664.

Adding to 215047 its reverse (740512), we get a palindrome (955559).

It can be divided in two parts, 2150 and 47, that added together give a cube (2197 = 13³).

The spelling of 215047 in words is "two hundred fifteen thousand, forty-seven".