1911941 has 4 divisors (see below), whose sum is σ = 1977900. Its totient is φ = 1845984.

The previous prime is 1911937. The next prime is 1911961. The reversal of 1911941 is 1491191.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 801025 + 1110916 = 895^2 + 1054^2 .

It is a cyclic number.

It is not a de Polignac number, because 1911941 - 2² = 1911937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1911941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1911911) 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, 32936 + ... + 32993.

It is an arithmetic number, because the mean of its divisors is an integer number (494475).

2^1911941 is an apocalyptic number.

It is an amenable number.

1911941 is a deficient number, since it is larger than the sum of its proper divisors (65959).

1911941 is an equidigital number, since it uses as much as digits as its factorization.

1911941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65958.

The product of its digits is 324, while the sum is 26.

The square root of 1911941 is about 1382.7295469469. The cubic root of 1911941 is about 124.1151592339.

The spelling of 1911941 in words is "one million, nine hundred eleven thousand, nine hundred forty-one".