541189109 has 2 divisors, whose sum is σ = 541189110. Its totient is φ = 541189108.

The previous prime is 541189091. The next prime is 541189147. The reversal of 541189109 is 901981145.

Together with previous prime (541189091) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (541189147) can be obtained adding 541189109 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290600209 + 250588900 = 17047^2 + 15830^2 .

It is a cyclic number.

It is not a de Polignac number, because 541189109 - 2¹² = 541185013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541189409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270594554 + 270594555.

It is an arithmetic number, because the mean of its divisors is an integer number (270594555).

Almost surely, 2^541189109 is an apocalyptic number.

It is an amenable number.

541189109 is a deficient number, since it is larger than the sum of its proper divisors (1).

541189109 is an equidigital number, since it uses as much as digits as its factorization.

541189109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 541189109 is about 23263.4715595072. The cubic root of 541189109 is about 814.9225761070.

The spelling of 541189109 in words is "five hundred forty-one million, one hundred eighty-nine thousand, one hundred nine".