109381567 has 2 divisors, whose sum is σ = 109381568. Its totient is φ = 109381566.

The previous prime is 109381561. The next prime is 109381603. The reversal of 109381567 is 765183901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109381567 - 2⁷ = 109381439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109381561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54690783 + 54690784.

It is an arithmetic number, because the mean of its divisors is an integer number (54690784).

Almost surely, 2^109381567 is an apocalyptic number.

109381567 is a deficient number, since it is larger than the sum of its proper divisors (1).

109381567 is an equidigital number, since it uses as much as digits as its factorization.

109381567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 109381567 is about 10458.5642896145. The cubic root of 109381567 is about 478.2423667161.

The spelling of 109381567 in words is "one hundred nine million, three hundred eighty-one thousand, five hundred sixty-seven".