3145305005 has 4 divisors (see below), whose sum is σ = 3774366012. Its totient is φ = 2516244000.

The previous prime is 3145304989. The next prime is 3145305067. The reversal of 3145305005 is 5005035413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1129833769 + 2015471236 = 33613^2 + 44894^2 .

It is not a de Polignac number, because 3145305005 - 2⁴ = 3145304989 is a prime.

It is a Duffinian number.

It is a congruent 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, 314530496 + ... + 314530505.

It is an arithmetic number, because the mean of its divisors is an integer number (943591503).

Almost surely, 2^3145305005 is an apocalyptic number.

It is an amenable number.

3145305005 is a deficient number, since it is larger than the sum of its proper divisors (629061007).

3145305005 is an equidigital number, since it uses as much as digits as its factorization.

3145305005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629061006.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 3145305005 is about 56083.0188648935. The cubic root of 3145305005 is about 1465.1685525568.

The spelling of 3145305005 in words is "three billion, one hundred forty-five million, three hundred five thousand, five".