1914325009 has 3 divisors (see below), whose sum is σ = 1914368763. Its totient is φ = 1914281256.

The previous prime is 1914324959. The next prime is 1914325019. The reversal of 1914325009 is 9005234191.

The square root of 1914325009 is 43753.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 898500625 + 1015824384 = 29975^2 + 31872^2 .

It is not a de Polignac number, because 1914325009 - 2²⁹ = 1377454097 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1914325019) 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 in 2 ways as a sum of consecutive naturals, for example, 21877 + ... + 65629.

It is an arithmetic number, because the mean of its divisors is an integer number (638122921).

Almost surely, 2^1914325009 is an apocalyptic number.

1914325009 is the 43753-rd square number.

1914325009 is the 21877-th centered octagonal number.

It is an amenable number.

1914325009 is a deficient number, since it is larger than the sum of its proper divisors (43754).

1914325009 is an frugal number, since it uses more digits than its factorization.

1914325009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87506 (or 43753 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The cubic root of 1914325009 is about 1241.6672441619.

The spelling of 1914325009 in words is "one billion, nine hundred fourteen million, three hundred twenty-five thousand, nine".