544856129 has 2 divisors, whose sum is σ = 544856130. Its totient is φ = 544856128.

The previous prime is 544856077. The next prime is 544856149. The reversal of 544856129 is 921658445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439321600 + 105534529 = 20960^2 + 10273^2 .

It is a cyclic number.

It is not a de Polignac number, because 544856129 - 2¹⁶ = 544790593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 544856129.

It is not a weakly prime, because it can be changed into another prime (544856149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272428064 + 272428065.

It is an arithmetic number, because the mean of its divisors is an integer number (272428065).

Almost surely, 2^544856129 is an apocalyptic number.

It is an amenable number.

544856129 is a deficient number, since it is larger than the sum of its proper divisors (1).

544856129 is an equidigital number, since it uses as much as digits as its factorization.

544856129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 44.

The square root of 544856129 is about 23342.1534782033. The cubic root of 544856129 is about 816.7590340803.

The spelling of 544856129 in words is "five hundred forty-four million, eight hundred fifty-six thousand, one hundred twenty-nine".