3145985 has 8 divisors (see below), whose sum is σ = 3831936. Its totient is φ = 2478960.

The previous prime is 3145981. The next prime is 3145997. The reversal of 3145985 is 5895413.

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

It is not a de Polignac number, because 3145985 - 2² = 3145981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3145981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4361 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (478992).

Almost surely, 2^3145985 is an apocalyptic number.

It is an amenable number.

3145985 is a deficient number, since it is larger than the sum of its proper divisors (685951).

3145985 is an equidigital number, since it uses as much as digits as its factorization.

3145985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9463.

The product of its digits is 21600, while the sum is 35.

The square root of 3145985 is about 1773.6924761638. The cubic root of 3145985 is about 146.5274131666.

The spelling of 3145985 in words is "three million, one hundred forty-five thousand, nine hundred eighty-five".