814052905 has 8 divisors (see below), whose sum is σ = 1034326152. Its totient is φ = 612933888.

The previous prime is 814052879. The next prime is 814052927. The reversal of 814052905 is 509250418.

It can be written as a sum of positive squares in 4 ways, for example, as 412130601 + 401922304 = 20301^2 + 20048^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 814052905 - 2¹³ = 814044713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4788462 + ... + 4788631.

It is an arithmetic number, because the mean of its divisors is an integer number (129290769).

Almost surely, 2^814052905 is an apocalyptic number.

814052905 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

814052905 is a deficient number, since it is larger than the sum of its proper divisors (220273247).

814052905 is a wasteful number, since it uses less digits than its factorization.

814052905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9577115.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 814052905 is about 28531.6123799550. The cubic root of 814052905 is about 933.7218965310.

The spelling of 814052905 in words is "eight hundred fourteen million, fifty-two thousand, nine hundred five".