109413281 has 2 divisors, whose sum is σ = 109413282. Its totient is φ = 109413280.

The previous prime is 109413257. The next prime is 109413301. The reversal of 109413281 is 182314901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109411600 + 1681 = 10460^2 + 41^2 .

It is a cyclic number.

It is not a de Polignac number, because 109413281 - 2⁶ = 109413217 is a prime.

It is a super-2 number, since 2×109413281² = 23942532118369922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (109413481) 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, 54706640 + 54706641.

It is an arithmetic number, because the mean of its divisors is an integer number (54706641).

Almost surely, 2^109413281 is an apocalyptic number.

It is an amenable number.

109413281 is a deficient number, since it is larger than the sum of its proper divisors (1).

109413281 is an equidigital number, since it uses as much as digits as its factorization.

109413281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 109413281 is about 10460.0803534199. The cubic root of 109413281 is about 478.2885826470.

The spelling of 109413281 in words is "one hundred nine million, four hundred thirteen thousand, two hundred eighty-one".