544023197 has 2 divisors, whose sum is σ = 544023198. Its totient is φ = 544023196.

The previous prime is 544023191. The next prime is 544023211. The reversal of 544023197 is 791320445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542470681 + 1552516 = 23291^2 + 1246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544023197 is a prime.

It is a super-2 number, since 2×544023197² = 591922477748201618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544023191) 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 as a sum of consecutive naturals, namely, 272011598 + 272011599.

It is an arithmetic number, because the mean of its divisors is an integer number (272011599).

Almost surely, 2^544023197 is an apocalyptic number.

It is an amenable number.

544023197 is a deficient number, since it is larger than the sum of its proper divisors (1).

544023197 is an equidigital number, since it uses as much as digits as its factorization.

544023197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 544023197 is about 23324.3048556650. The cubic root of 544023197 is about 816.3426234236.

The spelling of 544023197 in words is "five hundred forty-four million, twenty-three thousand, one hundred ninety-seven".