3140947 has 4 divisors (see below), whose sum is σ = 3306280. Its totient is φ = 2975616.

The previous prime is 3140933. The next prime is 3140959. The reversal of 3140947 is 7490413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3140947 - 2¹¹ = 3138899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3140147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82638 + ... + 82675.

It is an arithmetic number, because the mean of its divisors is an integer number (826570).

Almost surely, 2^3140947 is an apocalyptic number.

3140947 is a deficient number, since it is larger than the sum of its proper divisors (165333).

3140947 is a wasteful number, since it uses less digits than its factorization.

3140947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165332.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 3140947 is about 1772.2717060316. The cubic root of 3140947 is about 146.4491547394.

The spelling of 3140947 in words is "three million, one hundred forty thousand, nine hundred forty-seven".