109257541 has 2 divisors, whose sum is σ = 109257542. Its totient is φ = 109257540.

The previous prime is 109257523. The next prime is 109257607. The reversal of 109257541 is 145752901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61936900 + 47320641 = 7870^2 + 6879^2 .

It is a cyclic number.

It is not a de Polignac number, because 109257541 - 2⁵ = 109257509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109257497 and 109257506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109257241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54628770 + 54628771.

It is an arithmetic number, because the mean of its divisors is an integer number (54628771).

Almost surely, 2^109257541 is an apocalyptic number.

It is an amenable number.

109257541 is a deficient number, since it is larger than the sum of its proper divisors (1).

109257541 is an equidigital number, since it uses as much as digits as its factorization.

109257541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 109257541 is about 10452.6332089096. The cubic root of 109257541 is about 478.0615412439.

The spelling of 109257541 in words is "one hundred nine million, two hundred fifty-seven thousand, five hundred forty-one".