1914555909 has 16 divisors (see below), whose sum is σ = 2930277888. Its totient is φ = 1089209712.

The previous prime is 1914555893. The next prime is 1914555911. The reversal of 1914555909 is 9095554191.

It is not a de Polignac number, because 1914555909 - 2⁴ = 1914555893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914555989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196047 + ... + 205580.

It is an arithmetic number, because the mean of its divisors is an integer number (183142368).

Almost surely, 2^1914555909 is an apocalyptic number.

It is an amenable number.

1914555909 is a deficient number, since it is larger than the sum of its proper divisors (1015721979).

1914555909 is a wasteful number, since it uses less digits than its factorization.

1914555909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401864.

The product of its (nonzero) digits is 364500, while the sum is 48.

The square root of 1914555909 is about 43755.6385966426. The cubic root of 1914555909 is about 1241.7171641840.

The spelling of 1914555909 in words is "one billion, nine hundred fourteen million, five hundred fifty-five thousand, nine hundred nine".