814499109 has 12 divisors (see below), whose sum is σ = 1176992076. Its totient is φ = 542771712.

The previous prime is 814499107. The next prime is 814499111. The reversal of 814499109 is 901994418.

It is an interprime number because it is at equal distance from previous prime (814499107) and next prime (814499111).

It can be written as a sum of positive squares in 2 ways, for example, as 650403009 + 164096100 = 25503^2 + 12810^2 .

It is not a de Polignac number, because 814499109 - 2¹ = 814499107 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814499107) 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 11 ways as a sum of consecutive naturals, for example, 5317 + ... + 40709.

It is an arithmetic number, because the mean of its divisors is an integer number (98082673).

Almost surely, 2^814499109 is an apocalyptic number.

It is an amenable number.

814499109 is a deficient number, since it is larger than the sum of its proper divisors (362492967).

814499109 is a wasteful number, since it uses less digits than its factorization.

814499109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37956 (or 37953 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 814499109 is about 28539.4307756830. The cubic root of 814499109 is about 933.8924646205.

The spelling of 814499109 in words is "eight hundred fourteen million, four hundred ninety-nine thousand, one hundred nine".