215314240461 has 8 divisors (see below), whose sum is σ = 287105855904. Its totient is φ = 143532726000.

The previous prime is 215314240387. The next prime is 215314240487. The reversal of 215314240461 is 164042413512.

It is a happy number.

215314240461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 215314240461 - 2²¹ = 215312143309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215314244461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2475366 + ... + 2560871.

It is an arithmetic number, because the mean of its divisors is an integer number (35888231988).

Almost surely, 2^215314240461 is an apocalyptic number.

It is an amenable number.

215314240461 is a deficient number, since it is larger than the sum of its proper divisors (71791615443).

215314240461 is a wasteful number, since it uses less digits than its factorization.

215314240461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050491.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 215314240461 its reverse (164042413512), we get a palindrome (379356653973).

The spelling of 215314240461 in words is "two hundred fifteen billion, three hundred fourteen million, two hundred forty thousand, four hundred sixty-one".