109864049 has 2 divisors, whose sum is σ = 109864050. Its totient is φ = 109864048.

The previous prime is 109864039. The next prime is 109864057. The reversal of 109864049 is 940468901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108014449 + 1849600 = 10393^2 + 1360^2 .

It is an emirp because it is prime and its reverse (940468901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109864049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109863997 and 109864015.

It is not a weakly prime, because it can be changed into another prime (109864009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54932024 + 54932025.

It is an arithmetic number, because the mean of its divisors is an integer number (54932025).

Almost surely, 2^109864049 is an apocalyptic number.

It is an amenable number.

109864049 is a deficient number, since it is larger than the sum of its proper divisors (1).

109864049 is an equidigital number, since it uses as much as digits as its factorization.

109864049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 109864049 is about 10481.6052682783. The cubic root of 109864049 is about 478.9445108991.

The spelling of 109864049 in words is "one hundred nine million, eight hundred sixty-four thousand, forty-nine".