224670121 has 9 divisors (see below), whose sum is σ = 243493029. Its totient is φ = 207207936.

The previous prime is 224670107. The next prime is 224670133. The reversal of 224670121 is 121076422.

The square root of 224670121 is 14989.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1466521 + 223203600 = 1211^2 + 14940^2 .

It is not a de Polignac number, because 224670121 - 2⁷ = 224669993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224670161) 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 in 8 ways as a sum of consecutive naturals, for example, 194281 + ... + 195433.

It is an arithmetic number, because the mean of its divisors is an integer number (27054781).

Almost surely, 2^224670121 is an apocalyptic number.

224670121 is the 14989-th square number.

224670121 is the 7495-th centered octagonal number.

It is an amenable number.

224670121 is a deficient number, since it is larger than the sum of its proper divisors (18822908).

224670121 is an frugal number, since it uses more digits than its factorization.

224670121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332 (or 1166 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The cubic root of 224670121 is about 607.9228111049.

Multiplying 224670121 by its sum of digits (25), we get a square (5616753025 = 74945²).

The spelling of 224670121 in words is "two hundred twenty-four million, six hundred seventy thousand, one hundred twenty-one".