3145505 has 8 divisors (see below), whose sum is σ = 4117824. Its totient is φ = 2287600.

The previous prime is 3145489. The next prime is 3145511. The reversal of 3145505 is 5055413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3145505 - 2⁴ = 3145489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28541 + ... + 28650.

It is an arithmetic number, because the mean of its divisors is an integer number (514728).

Almost surely, 2^3145505 is an apocalyptic number.

It is an amenable number.

3145505 is a deficient number, since it is larger than the sum of its proper divisors (972319).

3145505 is a wasteful number, since it uses less digits than its factorization.

3145505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57207.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 3145505 is about 1773.5571600600. The cubic root of 3145505 is about 146.5199606267.

The spelling of 3145505 in words is "three million, one hundred forty-five thousand, five hundred five".