1941109 has 4 divisors (see below), whose sum is σ = 1965760. Its totient is φ = 1916460.

The previous prime is 1941103. The next prime is 1941151. The reversal of 1941109 is 9011491.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9011491 = 19 ⋅474289.

It is a cyclic number.

It is not a de Polignac number, because 1941109 - 2³ = 1941101 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 (1941101) 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, 12207 + ... + 12364.

It is an arithmetic number, because the mean of its divisors is an integer number (491440).

2^1941109 is an apocalyptic number.

It is an amenable number.

1941109 is a deficient number, since it is larger than the sum of its proper divisors (24651).

1941109 is an equidigital number, since it uses as much as digits as its factorization.

1941109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24650.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 1941109 is about 1393.2368786391. The cubic root of 1941109 is about 124.7431311755.

The spelling of 1941109 in words is "one million, nine hundred forty-one thousand, one hundred nine".