215040413 has 16 divisors (see below), whose sum is σ = 250688256. Its totient is φ = 180662400.

The previous prime is 215040403. The next prime is 215040457. The reversal of 215040413 is 314040512.

It is a cyclic number.

It is not a de Polignac number, because 215040413 - 2⁶ = 215040349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215040403) 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 15 ways as a sum of consecutive naturals, for example, 71345 + ... + 74297.

It is an arithmetic number, because the mean of its divisors is an integer number (15668016).

Almost surely, 2^215040413 is an apocalyptic number.

It is an amenable number.

215040413 is a deficient number, since it is larger than the sum of its proper divisors (35647843).

215040413 is a wasteful number, since it uses less digits than its factorization.

215040413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 215040413 is about 14664.2563057252. The cubic root of 215040413 is about 599.1101745219.

Adding to 215040413 its reverse (314040512), we get a palindrome (529080925).

Subtracting 215040413 from its reverse (314040512), we obtain a palindrome (99000099).

The spelling of 215040413 in words is "two hundred fifteen million, forty thousand, four hundred thirteen".