731126223 has 8 divisors (see below), whose sum is σ = 1083150000. Its totient is φ = 487417464.

The previous prime is 731126153. The next prime is 731126233. The reversal of 731126223 is 322621137.

731126223 is a `hidden beast` number, since 7 + 31 + 1 + 2 + 622 + 3 = 666.

It is not a de Polignac number, because 731126223 - 2¹⁴ = 731109839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 27078749 = 731126223 / (7 + 3 + 1 + 1 + 2 + 6 + 2 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731126233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13539348 + ... + 13539401.

It is an arithmetic number, because the mean of its divisors is an integer number (135393750).

Almost surely, 2^731126223 is an apocalyptic number.

731126223 is a deficient number, since it is larger than the sum of its proper divisors (352023777).

731126223 is a wasteful number, since it uses less digits than its factorization.

731126223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27078758 (or 27078752 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 731126223 is about 27039.3458315840. The cubic root of 731126223 is about 900.8741395918.

The spelling of 731126223 in words is "seven hundred thirty-one million, one hundred twenty-six thousand, two hundred twenty-three".