223153261 has 4 divisors (see below), whose sum is σ = 223229500. Its totient is φ = 223077024.

The previous prime is 223153207. The next prime is 223153279. The reversal of 223153261 is 162351322.

223153261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134699236 + 88454025 = 11606^2 + 9405^2 .

It is a cyclic number.

It is not a de Polignac number, because 223153261 - 2²³ = 214764653 is a prime.

It is a super-3 number, since 3×223153261³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223153361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33546 + ... + 39643.

It is an arithmetic number, because the mean of its divisors is an integer number (55807375).

Almost surely, 2^223153261 is an apocalyptic number.

It is an amenable number.

223153261 is a deficient number, since it is larger than the sum of its proper divisors (76239).

223153261 is an equidigital number, since it uses as much as digits as its factorization.

223153261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76238.

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

The square root of 223153261 is about 14938.3151995130. The cubic root of 223153261 is about 606.5515905320.

The spelling of 223153261 in words is "two hundred twenty-three million, one hundred fifty-three thousand, two hundred sixty-one".