109129517 has 12 divisors (see below), whose sum is σ = 131043456. Its totient is φ = 90520920.

The previous prime is 109129507. The next prime is 109129541. The reversal of 109129517 is 715921901.

It is not a de Polignac number, because 109129517 - 2⁶ = 109129453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109129507) 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 in 11 ways as a sum of consecutive naturals, for example, 34403 + ... + 37440.

It is an arithmetic number, because the mean of its divisors is an integer number (10920288).

Almost surely, 2^109129517 is an apocalyptic number.

It is an amenable number.

109129517 is a deficient number, since it is larger than the sum of its proper divisors (21913939).

109129517 is an equidigital number, since it uses as much as digits as its factorization.

109129517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71888 (or 71881 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 109129517 is about 10446.5074067843. The cubic root of 109129517 is about 477.8747432403.

The spelling of 109129517 in words is "one hundred nine million, one hundred twenty-nine thousand, five hundred seventeen".