215242413 has 8 divisors (see below), whose sum is σ = 289831776. Its totient is φ = 142074000.

The previous prime is 215242411. The next prime is 215242421. The reversal of 215242413 is 314242512.

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

It is not a de Polignac number, because 215242413 - 2¹ = 215242411 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215242411) 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, 354883 + ... + 355488.

It is an arithmetic number, because the mean of its divisors is an integer number (36228972).

Almost surely, 2^215242413 is an apocalyptic number.

It is an amenable number.

215242413 is a deficient number, since it is larger than the sum of its proper divisors (74589363).

215242413 is a wasteful number, since it uses less digits than its factorization.

215242413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710475.

The product of its digits is 1920, while the sum is 24.

The square root of 215242413 is about 14671.1421845745. The cubic root of 215242413 is about 599.2977088549.

Adding to 215242413 its reverse (314242512), we get a palindrome (529484925).

Subtracting 215242413 from its reverse (314242512), we obtain a palindrome (99000099).

The spelling of 215242413 in words is "two hundred fifteen million, two hundred forty-two thousand, four hundred thirteen".