109236887 has 2 divisors, whose sum is σ = 109236888. Its totient is φ = 109236886.

The previous prime is 109236877. The next prime is 109236923. The reversal of 109236887 is 788632901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109236887 - 2¹² = 109232791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109236847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54618443 + 54618444.

It is an arithmetic number, because the mean of its divisors is an integer number (54618444).

Almost surely, 2^109236887 is an apocalyptic number.

109236887 is a deficient number, since it is larger than the sum of its proper divisors (1).

109236887 is an equidigital number, since it uses as much as digits as its factorization.

109236887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 109236887 is about 10451.6451815013. The cubic root of 109236887 is about 478.0314151607.

The spelling of 109236887 in words is "one hundred nine million, two hundred thirty-six thousand, eight hundred eighty-seven".