541949789 has 2 divisors, whose sum is σ = 541949790. Its totient is φ = 541949788.

The previous prime is 541949761. The next prime is 541949819. The reversal of 541949789 is 987949145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 524868100 + 17081689 = 22910^2 + 4133^2 .

It is a cyclic number.

It is not a de Polignac number, because 541949789 - 2¹⁶ = 541884253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541949389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270974894 + 270974895.

It is an arithmetic number, because the mean of its divisors is an integer number (270974895).

Almost surely, 2^541949789 is an apocalyptic number.

It is an amenable number.

541949789 is a deficient number, since it is larger than the sum of its proper divisors (1).

541949789 is an equidigital number, since it uses as much as digits as its factorization.

541949789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 56.

The square root of 541949789 is about 23279.8150551073. The cubic root of 541949789 is about 815.3042080146.

The spelling of 541949789 in words is "five hundred forty-one million, nine hundred forty-nine thousand, seven hundred eighty-nine".