1797126223 has 4 divisors (see below), whose sum is σ = 1845697240. Its totient is φ = 1748555208.

The previous prime is 1797126217. The next prime is 1797126239. The reversal of 1797126223 is 3226217971.

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

It is a cyclic number.

It is not a de Polignac number, because 1797126223 - 2¹³ = 1797118031 is a prime.

It is a super-2 number, since 2×1797126223² = 6459325322788491458, which contains 22 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 (1797126623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24285453 + ... + 24285526.

It is an arithmetic number, because the mean of its divisors is an integer number (461424310).

Almost surely, 2^1797126223 is an apocalyptic number.

1797126223 is a deficient number, since it is larger than the sum of its proper divisors (48571017).

1797126223 is an equidigital number, since it uses as much as digits as its factorization.

1797126223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48571016.

The product of its digits is 63504, while the sum is 40.

The square root of 1797126223 is about 42392.5255558100. The cubic root of 1797126223 is about 1215.7926879148.

The spelling of 1797126223 in words is "one billion, seven hundred ninety-seven million, one hundred twenty-six thousand, two hundred twenty-three".