109949 has 8 divisors (see below), whose sum is σ = 127680. Its totient is φ = 92736.

The previous prime is 109943. The next prime is 109961. The reversal of 109949 is 949901.

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

It is a de Polignac number, because none of the positive numbers 2^k-109949 is a prime.

It is an Ulam number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722 + ... + 860.

It is an arithmetic number, because the mean of its divisors is an integer number (15960).

2¹⁰⁹⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

109949 is a deficient number, since it is larger than the sum of its proper divisors (17731).

109949 is a wasteful number, since it uses less digits than its factorization.

109949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 109949 is about 331.5855847289. The cubic root of 109949 is about 47.9067925043.

The spelling of 109949 in words is "one hundred nine thousand, nine hundred forty-nine".