3145205673 has 16 divisors (see below), whose sum is σ = 4696258560. Its totient is φ = 2080291248.

The previous prime is 3145205669. The next prime is 3145205677. The reversal of 3145205673 is 3765025413.

3145205673 is a `hidden beast` number, since 3 + 14 + 520 + 56 + 73 = 666.

It is an interprime number because it is at equal distance from previous prime (3145205669) and next prime (3145205677).

It is not a de Polignac number, because 3145205673 - 2² = 3145205669 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3145205677) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 455190 + ... + 462047.

It is an arithmetic number, because the mean of its divisors is an integer number (293516160).

Almost surely, 2^3145205673 is an apocalyptic number.

It is an amenable number.

3145205673 is a deficient number, since it is larger than the sum of its proper divisors (1551052887).

3145205673 is a wasteful number, since it uses less digits than its factorization.

3145205673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917373 (or 917367 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 3145205673 is about 56082.1332778988. The cubic root of 3145205673 is about 1465.1531285460.

The spelling of 3145205673 in words is "three billion, one hundred forty-five million, two hundred five thousand, six hundred seventy-three".