224722137 has 8 divisors (see below), whose sum is σ = 300873760. Its totient is φ = 149192640.

The previous prime is 224722129. The next prime is 224722217. The reversal of 224722137 is 731227422.

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

It is not a de Polignac number, because 224722137 - 2³ = 224722129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224720137) 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, 154687 + ... + 156132.

It is an arithmetic number, because the mean of its divisors is an integer number (37609220).

Almost surely, 2^224722137 is an apocalyptic number.

It is an amenable number.

224722137 is a deficient number, since it is larger than the sum of its proper divisors (76151623).

224722137 is a wasteful number, since it uses less digits than its factorization.

224722137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311063.

The product of its digits is 9408, while the sum is 30.

The square root of 224722137 is about 14990.7350386831. The cubic root of 224722137 is about 607.9697232514.

Adding to 224722137 its reverse (731227422), we get a palindrome (955949559).

The spelling of 224722137 in words is "two hundred twenty-four million, seven hundred twenty-two thousand, one hundred thirty-seven".