107749 has 8 divisors (see below), whose sum is σ = 116640. Its totient is φ = 99216.

The previous prime is 107747. The next prime is 107761. The reversal of 107749 is 947701.

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

It is not a de Polignac number, because 107749 - 2¹ = 107747 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 (107741) 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, 954 + ... + 1060.

It is an arithmetic number, because the mean of its divisors is an integer number (14580).

2¹⁰⁷⁷⁴⁹ is an apocalyptic number.

107749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

107749 is a deficient number, since it is larger than the sum of its proper divisors (8891).

107749 is a wasteful number, since it uses less digits than its factorization.

107749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 107749 is about 328.2514280243. The cubic root of 107749 is about 47.5851105656.

The spelling of 107749 in words is "one hundred seven thousand, seven hundred forty-nine".