544195081 has 2 divisors, whose sum is σ = 544195082. Its totient is φ = 544195080.

The previous prime is 544195079. The next prime is 544195097. The reversal of 544195081 is 180591445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388444681 + 155750400 = 19709^2 + 12480^2 .

It is a cyclic number.

It is not a de Polignac number, because 544195081 - 2¹ = 544195079 is a prime.

It is a super-2 number, since 2×544195081² = 592296572369193122, which contains 22 as substring.

Together with 544195079, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 544195081.

It is not a weakly prime, because it can be changed into another prime (544195021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272097540 + 272097541.

It is an arithmetic number, because the mean of its divisors is an integer number (272097541).

Almost surely, 2^544195081 is an apocalyptic number.

It is an amenable number.

544195081 is a deficient number, since it is larger than the sum of its proper divisors (1).

544195081 is an equidigital number, since it uses as much as digits as its factorization.

544195081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 544195081 is about 23327.9892189618. The cubic root of 544195081 is about 816.4285887901.

It can be divided in two parts, 544 and 195081, that added together give a triangular number (195625 = T₆₂₅).

The spelling of 544195081 in words is "five hundred forty-four million, one hundred ninety-five thousand, eighty-one".