223129797 has 16 divisors (see below), whose sum is σ = 325306368. Its totient is φ = 134916080.

The previous prime is 223129789. The next prime is 223129801. The reversal of 223129797 is 797921322.

It is a cyclic number.

It is not a de Polignac number, because 223129797 - 2³ = 223129789 is a prime.

It is a super-3 number, since 3×223129797³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223129717) 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 15 ways as a sum of consecutive naturals, for example, 6988 + ... + 22250.

It is an arithmetic number, because the mean of its divisors is an integer number (20331648).

Almost surely, 2^223129797 is an apocalyptic number.

It is an amenable number.

223129797 is a deficient number, since it is larger than the sum of its proper divisors (102176571).

223129797 is a wasteful number, since it uses less digits than its factorization.

223129797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15720.

The product of its digits is 95256, while the sum is 42.

The square root of 223129797 is about 14937.5298158698. The cubic root of 223129797 is about 606.5303306659.

The spelling of 223129797 in words is "two hundred twenty-three million, one hundred twenty-nine thousand, seven hundred ninety-seven".