1005356465 has 4 divisors (see below), whose sum is σ = 1206427764. Its totient is φ = 804285168.

The previous prime is 1005356447. The next prime is 1005356479. The reversal of 1005356465 is 5646535001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5646535001 = 509 ⋅11093389.

It can be written as a sum of positive squares in 2 ways, for example, as 396846241 + 608510224 = 19921^2 + 24668^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005356465 - 2¹⁴ = 1005340081 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100535642 + ... + 100535651.

It is an arithmetic number, because the mean of its divisors is an integer number (301606941).

Almost surely, 2^1005356465 is an apocalyptic number.

It is an amenable number.

1005356465 is a deficient number, since it is larger than the sum of its proper divisors (201071299).

1005356465 is an equidigital number, since it uses as much as digits as its factorization.

1005356465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201071298.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 1005356465 is about 31707.3566384838. The cubic root of 1005356465 is about 1001.7823098178.

The spelling of 1005356465 in words is "one billion, five million, three hundred fifty-six thousand, four hundred sixty-five".