215144241 has 32 divisors (see below), whose sum is σ = 314708352. Its totient is φ = 129945600.

The previous prime is 215144221. The next prime is 215144269. The reversal of 215144241 is 142441512.

It is not a de Polignac number, because 215144241 - 2⁷ = 215144113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (215144221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760086 + ... + 760368.

It is an arithmetic number, because the mean of its divisors is an integer number (9834636).

Almost surely, 2^215144241 is an apocalyptic number.

It is an amenable number.

215144241 is a deficient number, since it is larger than the sum of its proper divisors (99564111).

215144241 is a wasteful number, since it uses less digits than its factorization.

215144241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593.

The product of its digits is 1280, while the sum is 24.

The square root of 215144241 is about 14667.7960512137. The cubic root of 215144241 is about 599.2065818307.

Adding to 215144241 its reverse (142441512), we get a palindrome (357585753).

The spelling of 215144241 in words is "two hundred fifteen million, one hundred forty-four thousand, two hundred forty-one".