1914641 has 2 divisors, whose sum is σ = 1914642. Its totient is φ = 1914640.

The previous prime is 1914637. The next prime is 1914673. The reversal of 1914641 is 1464191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1274641 + 640000 = 1129^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1914641 - 2² = 1914637 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1914641.

It is not a weakly prime, because it can be changed into another prime (1914691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957320 + 957321.

It is an arithmetic number, because the mean of its divisors is an integer number (957321).

2^1914641 is an apocalyptic number.

It is an amenable number.

1914641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914641 is an equidigital number, since it uses as much as digits as its factorization.

1914641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 1914641 is about 1383.7055322575. The cubic root of 1914641 is about 124.1735559641.

The spelling of 1914641 in words is "one million, nine hundred fourteen thousand, six hundred forty-one".