1005405230245 has 8 divisors (see below), whose sum is σ = 1299292913016. Its totient is φ = 742453093056.

The previous prime is 1005405230209. The next prime is 1005405230303. The reversal of 1005405230245 is 5420325045001.

It can be written as a sum of positive squares in 4 ways, for example, as 69283189089 + 936122041156 = 263217^2 + 967534^2 .

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 1005405230245 - 2¹³ = 1005405222053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7733886322 + ... + 7733886451.

It is an arithmetic number, because the mean of its divisors is an integer number (162411614127).

Almost surely, 2^{1005405230245} is an apocalyptic number.

It is an amenable number.

1005405230245 is a deficient number, since it is larger than the sum of its proper divisors (293887682771).

1005405230245 is a wasteful number, since it uses less digits than its factorization.

1005405230245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15467772791.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 1005405230245 in words is "one trillion, five billion, four hundred five million, two hundred thirty thousand, two hundred forty-five".