109148939 has 8 divisors (see below), whose sum is σ = 116513280. Its totient is φ = 101946600.

The previous prime is 109148933. The next prime is 109148951. The reversal of 109148939 is 939841901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109148939 - 2¹² = 109144843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109148939.

It is not an unprimeable number, because it can be changed into a prime (109148933) 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 7 ways as a sum of consecutive naturals, for example, 39107 + ... + 41804.

It is an arithmetic number, because the mean of its divisors is an integer number (14564160).

Almost surely, 2^109148939 is an apocalyptic number.

109148939 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

109148939 is a deficient number, since it is larger than the sum of its proper divisors (7364341).

109148939 is an equidigital number, since it uses as much as digits as its factorization.

109148939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81001.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 109148939 is about 10447.4369584123. The cubic root of 109148939 is about 477.9030910023.

The spelling of 109148939 in words is "one hundred nine million, one hundred forty-eight thousand, nine hundred thirty-nine".