223161325 has 6 divisors (see below), whose sum is σ = 276720074. Its totient is φ = 178529040.

The previous prime is 223161313. The next prime is 223161347. The reversal of 223161325 is 523161322.

It can be written as a sum of positive squares in 3 ways, for example, as 1687401 + 221473924 = 1299^2 + 14882^2 .

It is not a de Polignac number, because 223161325 - 2¹⁷ = 223030253 is a prime.

It is a super-3 number, since 3×223161325³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 8926453 = 223161325 / (2 + 2 + 3 + 1 + 6 + 1 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223161325.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4463202 + ... + 4463251.

Almost surely, 2^223161325 is an apocalyptic number.

223161325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223161325 is a deficient number, since it is larger than the sum of its proper divisors (53558749).

223161325 is an equidigital number, since it uses as much as digits as its factorization.

223161325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8926463 (or 8926458 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 223161325 is about 14938.5851070307. The cubic root of 223161325 is about 606.5588966813.

The spelling of 223161325 in words is "two hundred twenty-three million, one hundred sixty-one thousand, three hundred twenty-five".