215049 has 8 divisors (see below), whose sum is σ = 290080. Its totient is φ = 141696.

The previous prime is 214993. The next prime is 215051. The reversal of 215049 is 940512.

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

It is a de Polignac number, because none of the positive numbers 2^k-215049 is a prime.

It is a Duffinian number.

215049 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (215249) 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, 79 + ... + 660.

It is an arithmetic number, because the mean of its divisors is an integer number (36260).

215049 is a Friedman number, since it can be written as 9+210*4^5, using all its digits and the basic arithmetic operations.

2²¹⁵⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

215049 is a deficient number, since it is larger than the sum of its proper divisors (75031).

215049 is an equidigital number, since it uses as much as digits as its factorization.

215049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 215049 is about 463.7337598235. The cubic root of 215049 is about 59.9118148977.

It can be divided in two parts, 2 and 15049, that added together give a palindrome (15051).

The spelling of 215049 in words is "two hundred fifteen thousand, forty-nine".