3145005 has 24 divisors (see below), whose sum is σ = 5571072. Its totient is φ = 1640544.

The previous prime is 3144989. The next prime is 3145019. The reversal of 3145005 is 5005413.

It is not a de Polignac number, because 3145005 - 2⁴ = 3144989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1372 + ... + 2858.

It is an arithmetic number, because the mean of its divisors is an integer number (232128).

Almost surely, 2^3145005 is an apocalyptic number.

It is an amenable number.

3145005 is a deficient number, since it is larger than the sum of its proper divisors (2426067).

3145005 is a wasteful number, since it uses less digits than its factorization.

3145005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 3145005 is about 1773.4161948059. The cubic root of 3145005 is about 146.5121967581.

The spelling of 3145005 in words is "three million, one hundred forty-five thousand, five".