215154323141 has 8 divisors (see below), whose sum is σ = 216159501600. Its totient is φ = 214149715920.

The previous prime is 215154323099. The next prime is 215154323149. The reversal of 215154323141 is 141323451512.

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

It is a cyclic number.

It is not a de Polignac number, because 215154323141 - 2⁶ = 215154323077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215154323098 and 215154323107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215154323149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621770 + ... + 903828.

It is an arithmetic number, because the mean of its divisors is an integer number (27019937700).

Almost surely, 2^215154323141 is an apocalyptic number.

It is an amenable number.

215154323141 is a deficient number, since it is larger than the sum of its proper divisors (1005178459).

215154323141 is a wasteful number, since it uses less digits than its factorization.

215154323141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285619.

The product of its digits is 14400, while the sum is 32.

Adding to 215154323141 its reverse (141323451512), we get a palindrome (356477774653).

The spelling of 215154323141 in words is "two hundred fifteen billion, one hundred fifty-four million, three hundred twenty-three thousand, one hundred forty-one".