109187459 has 2 divisors, whose sum is σ = 109187460. Its totient is φ = 109187458.

The previous prime is 109187453. The next prime is 109187483. The reversal of 109187459 is 954781901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109187459 - 2⁴ = 109187443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109187453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54593729 + 54593730.

It is an arithmetic number, because the mean of its divisors is an integer number (54593730).

Almost surely, 2^109187459 is an apocalyptic number.

109187459 is a deficient number, since it is larger than the sum of its proper divisors (1).

109187459 is an equidigital number, since it uses as much as digits as its factorization.

109187459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 109187459 is about 10449.2803101458. The cubic root of 109187459 is about 477.9593036786.

The spelling of 109187459 in words is "one hundred nine million, one hundred eighty-seven thousand, four hundred fifty-nine".