109437 has 4 divisors (see below), whose sum is σ = 145920. Its totient is φ = 72956.

The previous prime is 109433. The next prime is 109441. The reversal of 109437 is 734901.

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 an interprime number because it is at equal distance from previous prime (109433) and next prime (109441).

It is a cyclic number.

It is not a de Polignac number, because 109437 - 2² = 109433 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 (109433) 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, 18237 + ... + 18242.

It is an arithmetic number, because the mean of its divisors is an integer number (36480).

2¹⁰⁹⁴³⁷ is an apocalyptic number.

It is an amenable number.

109437 is a deficient number, since it is larger than the sum of its proper divisors (36483).

109437 is an equidigital number, since it uses as much as digits as its factorization.

109437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36482.

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

The square root of 109437 is about 330.8126357925. The cubic root of 109437 is about 47.8323141850.

The spelling of 109437 in words is "one hundred nine thousand, four hundred thirty-seven".