224651641 has 4 divisors (see below), whose sum is σ = 226291572. Its totient is φ = 223011712.

The previous prime is 224651629. The next prime is 224651657. The reversal of 224651641 is 146156422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146156422 = 2 ⋅73078211.

It can be written as a sum of positive squares in 2 ways, for example, as 99301225 + 125350416 = 9965^2 + 11196^2 .

It is a cyclic number.

It is not a de Polignac number, because 224651641 - 2⁹ = 224651129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224661641) 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 3 ways as a sum of consecutive naturals, for example, 819760 + ... + 820033.

It is an arithmetic number, because the mean of its divisors is an integer number (56572893).

Almost surely, 2^224651641 is an apocalyptic number.

It is an amenable number.

224651641 is a deficient number, since it is larger than the sum of its proper divisors (1639931).

224651641 is a wasteful number, since it uses less digits than its factorization.

224651641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639930.

The product of its digits is 11520, while the sum is 31.

The square root of 224651641 is about 14988.3835352582. The cubic root of 224651641 is about 607.9061426348.

The spelling of 224651641 in words is "two hundred twenty-four million, six hundred fifty-one thousand, six hundred forty-one".