223057261 has 12 divisors (see below), whose sum is σ = 265805820. Its totient is φ = 186527040.

The previous prime is 223057193. The next prime is 223057277. The reversal of 223057261 is 162750322.

It can be written as a sum of positive squares in 2 ways, for example, as 13097161 + 209960100 = 3619^2 + 14490^2 .

It is not a de Polignac number, because 223057261 - 2²¹ = 220960109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223057291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53506 + ... + 57523.

It is an arithmetic number, because the mean of its divisors is an integer number (22150485).

Almost surely, 2^223057261 is an apocalyptic number.

It is an amenable number.

223057261 is a deficient number, since it is larger than the sum of its proper divisors (42748559).

223057261 is a wasteful number, since it uses less digits than its factorization.

223057261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111084 (or 111077 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 223057261 is about 14935.1016400961. The cubic root of 223057261 is about 606.4645990410.

The spelling of 223057261 in words is "two hundred twenty-three million, fifty-seven thousand, two hundred sixty-one".