215413 has 4 divisors (see below), whose sum is σ = 235008. Its totient is φ = 195820.

The previous prime is 215399. The next prime is 215417. The reversal of 215413 is 314512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 215413 - 2⁵ = 215381 is a prime.

It is an Ulam number.

It is a Duffinian number.

215413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215417) 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, 9781 + ... + 9802.

It is an arithmetic number, because the mean of its divisors is an integer number (58752).

2²¹⁵⁴¹³ is an apocalyptic number.

It is an amenable number.

215413 is a deficient number, since it is larger than the sum of its proper divisors (19595).

215413 is a wasteful number, since it uses less digits than its factorization.

215413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19594.

The product of its digits is 120, while the sum is 16.

The square root of 215413 is about 464.1260604620. The cubic root of 215413 is about 59.9455988383.

Adding to 215413 its reverse (314512), we get a palindrome (529925).

Subtracting 215413 from its reverse (314512), we obtain a palindrome (99099).

The spelling of 215413 in words is "two hundred fifteen thousand, four hundred thirteen".