109920049 has 2 divisors, whose sum is σ = 109920050. Its totient is φ = 109920048.

The previous prime is 109920037. The next prime is 109920053. The reversal of 109920049 is 940029901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55056400 + 54863649 = 7420^2 + 7407^2 .

It is a cyclic number.

It is not a de Polignac number, because 109920049 - 2¹¹ = 109918001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109919996 and 109920023.

It is not a weakly prime, because it can be changed into another prime (109920089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54960024 + 54960025.

It is an arithmetic number, because the mean of its divisors is an integer number (54960025).

Almost surely, 2^109920049 is an apocalyptic number.

It is an amenable number.

109920049 is a deficient number, since it is larger than the sum of its proper divisors (1).

109920049 is an equidigital number, since it uses as much as digits as its factorization.

109920049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 109920049 is about 10484.2762744979. The cubic root of 109920049 is about 479.0258730829.

The spelling of 109920049 in words is "one hundred nine million, nine hundred twenty thousand, forty-nine".