109780901 has 2 divisors, whose sum is σ = 109780902. Its totient is φ = 109780900.

The previous prime is 109780873. The next prime is 109780919. The reversal of 109780901 is 109087901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97495876 + 12285025 = 9874^2 + 3505^2 .

It is a cyclic number.

It is not a de Polignac number, because 109780901 - 2¹⁸ = 109518757 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109780501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54890450 + 54890451.

It is an arithmetic number, because the mean of its divisors is an integer number (54890451).

Almost surely, 2^109780901 is an apocalyptic number.

It is an amenable number.

109780901 is a deficient number, since it is larger than the sum of its proper divisors (1).

109780901 is an equidigital number, since it uses as much as digits as its factorization.

109780901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 109780901 is about 10477.6381403444. The cubic root of 109780901 is about 478.8236544733.

The spelling of 109780901 in words is "one hundred nine million, seven hundred eighty thousand, nine hundred one".