1005452465 has 4 divisors (see below), whose sum is σ = 1206542964. Its totient is φ = 804361968.

The previous prime is 1005452449. The next prime is 1005452479. The reversal of 1005452465 is 5642545001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5642545001 = 73 ⋅77295137.

It can be written as a sum of positive squares in 2 ways, for example, as 588353536 + 417098929 = 24256^2 + 20423^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005452465 - 2⁴ = 1005452449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100545242 + ... + 100545251.

It is an arithmetic number, because the mean of its divisors is an integer number (301635741).

Almost surely, 2^1005452465 is an apocalyptic number.

It is an amenable number.

1005452465 is a deficient number, since it is larger than the sum of its proper divisors (201090499).

1005452465 is an equidigital number, since it uses as much as digits as its factorization.

1005452465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201090498.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1005452465 is about 31708.8704466116. The cubic root of 1005452465 is about 1001.8141950393.

Adding to 1005452465 its reverse (5642545001), we get a palindrome (6647997466).

The spelling of 1005452465 in words is "one billion, five million, four hundred fifty-two thousand, four hundred sixty-five".