103749 has 4 divisors (see below), whose sum is σ = 138336. Its totient is φ = 69164.

The previous prime is 103723. The next prime is 103769. The reversal of 103749 is 947301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103749 - 2⁹ = 103237 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17289 + ... + 17294.

It is an arithmetic number, because the mean of its divisors is an integer number (34584).

2¹⁰³⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

103749 is a deficient number, since it is larger than the sum of its proper divisors (34587).

103749 is an equidigital number, since it uses as much as digits as its factorization.

103749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34586.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 103749 is about 322.1009158633. The cubic root of 103749 is about 46.9888309057.

The spelling of 103749 in words is "one hundred three thousand, seven hundred forty-nine".