3140985 has 32 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 1556928.

The previous prime is 3140981. The next prime is 3140993. The reversal of 3140985 is 5890413.

It is not a de Polignac number, because 3140985 - 2² = 3140981 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3140981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29302 + ... + 29408.

It is an arithmetic number, because the mean of its divisors is an integer number (168480).

Almost surely, 2^3140985 is an apocalyptic number.

It is an amenable number.

3140985 is a deficient number, since it is larger than the sum of its proper divisors (2250375).

3140985 is a wasteful number, since it uses less digits than its factorization.

3140985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 3140985 is about 1772.2824267029. The cubic root of 3140985 is about 146.4497453305.

The spelling of 3140985 in words is "three million, one hundred forty thousand, nine hundred eighty-five".