1914091 has 4 divisors (see below), whose sum is σ = 1938400. Its totient is φ = 1889784.

The previous prime is 1914067. The next prime is 1914097. The reversal of 1914091 is 1904191.

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

It is a cyclic number.

It is not a de Polignac number, because 1914091 - 2⁷ = 1913963 is a prime.

It is a Duffinian number.

1914091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1914097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12036 + ... + 12193.

It is an arithmetic number, because the mean of its divisors is an integer number (484600).

2^1914091 is an apocalyptic number.

1914091 is a deficient number, since it is larger than the sum of its proper divisors (24309).

1914091 is an equidigital number, since it uses as much as digits as its factorization.

1914091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24308.

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

The square root of 1914091 is about 1383.5067762754. The cubic root of 1914091 is about 124.1616647886.

The spelling of 1914091 in words is "one million, nine hundred fourteen thousand, ninety-one".