251141216 has 12 divisors (see below), whose sum is σ = 494434332. Its totient is φ = 125570592.

The previous prime is 251141213. The next prime is 251141227. The reversal of 251141216 is 612141152.

It is a junction number, because it is equal to n+sod(n) for n = 251141191 and 251141200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251141213) 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 as a sum of consecutive naturals, namely, 3924050 + ... + 3924113.

It is an arithmetic number, because the mean of its divisors is an integer number (41202861).

Almost surely, 2^251141216 is an apocalyptic number.

It is an amenable number.

251141216 is a deficient number, since it is larger than the sum of its proper divisors (243293116).

251141216 is an equidigital number, since it uses as much as digits as its factorization.

251141216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7848173 (or 7848165 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 251141216 is about 15847.4356285173. The cubic root of 251141216 is about 630.9176314417.

Adding to 251141216 its reverse (612141152), we get a palindrome (863282368).

The spelling of 251141216 in words is "two hundred fifty-one million, one hundred forty-one thousand, two hundred sixteen".