224230251 has 16 divisors (see below), whose sum is σ = 349631744. Its totient is φ = 125151264.

The previous prime is 224230247. The next prime is 224230261. The reversal of 224230251 is 152032422.

It is not a de Polignac number, because 224230251 - 2² = 224230247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (224230241) 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 15 ways as a sum of consecutive naturals, for example, 123256 + ... + 125061.

It is an arithmetic number, because the mean of its divisors is an integer number (21851984).

Almost surely, 2^224230251 is an apocalyptic number.

224230251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

224230251 is a deficient number, since it is larger than the sum of its proper divisors (125401493).

224230251 is a wasteful number, since it uses less digits than its factorization.

224230251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248370.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 224230251 is about 14974.3197174362. The cubic root of 224230251 is about 607.5258117028.

Adding to 224230251 its reverse (152032422), we get a palindrome (376262673).

The spelling of 224230251 in words is "two hundred twenty-four million, two hundred thirty thousand, two hundred fifty-one".