215046 has 24 divisors (see below), whose sum is σ = 502320. Its totient is φ = 66096.

The previous prime is 214993. The next prime is 215051. The reversal of 215046 is 640512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226 + ... + 693.

It is an arithmetic number, because the mean of its divisors is an integer number (20930).

215046 is a Friedman number, since it can be written as 6+210*4^5, using all its digits and the basic arithmetic operations.

2²¹⁵⁰⁴⁶ is an apocalyptic number.

215046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

215046 is an abundant number, since it is smaller than the sum of its proper divisors (287274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215046 is a wasteful number, since it uses less digits than its factorization.

215046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 215046 is about 463.7305251976. The cubic root of 215046 is about 59.9115363003.

Adding to 215046 its reverse (640512), we get a palindrome (855558).

The spelling of 215046 in words is "two hundred fifteen thousand, forty-six".