109105251841 has 2 divisors, whose sum is σ = 109105251842. Its totient is φ = 109105251840.

The previous prime is 109105251833. The next prime is 109105251851. The reversal of 109105251841 is 148152501901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63401225616 + 45704026225 = 251796^2 + 213785^2 .

It is a cyclic number.

It is not a de Polignac number, because 109105251841 - 2³ = 109105251833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109105251841.

It is not a weakly prime, because it can be changed into another prime (109105251811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54552625920 + 54552625921.

It is an arithmetic number, because the mean of its divisors is an integer number (54552625921).

Almost surely, 2^109105251841 is an apocalyptic number.

It is an amenable number.

109105251841 is a deficient number, since it is larger than the sum of its proper divisors (1).

109105251841 is an equidigital number, since it uses as much as digits as its factorization.

109105251841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 37.

The spelling of 109105251841 in words is "one hundred nine billion, one hundred five million, two hundred fifty-one thousand, eight hundred forty-one".