223180913 has 4 divisors (see below), whose sum is σ = 236309220. Its totient is φ = 210052608.

The previous prime is 223180889. The next prime is 223180943. The reversal of 223180913 is 319081322.

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 63234304 + 159946609 = 7952^2 + 12647^2 .

It is a cyclic number.

It is not a de Polignac number, because 223180913 - 2⁶ = 223180849 is a prime.

It is a super-3 number, since 3×223180913³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223180943) 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, 6564128 + ... + 6564161.

It is an arithmetic number, because the mean of its divisors is an integer number (59077305).

Almost surely, 2^223180913 is an apocalyptic number.

It is an amenable number.

223180913 is a deficient number, since it is larger than the sum of its proper divisors (13128307).

223180913 is a wasteful number, since it uses less digits than its factorization.

223180913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13128306.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 223180913 is about 14939.2407102905. The cubic root of 223180913 is about 606.5766430778.

The spelling of 223180913 in words is "two hundred twenty-three million, one hundred eighty thousand, nine hundred thirteen".