3145971 has 8 divisors (see below), whose sum is σ = 4297104. Its totient is φ = 2046080.

The previous prime is 3145943. The next prime is 3145981. The reversal of 3145971 is 1795413.

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

It is a cyclic number.

It is not a de Polignac number, because 3145971 - 2¹⁸ = 2883827 is a prime.

3145971 is a lucky number.

It is a zygodrome in base 2.

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, 12666 + ... + 12911.

It is an arithmetic number, because the mean of its divisors is an integer number (537138).

Almost surely, 2^3145971 is an apocalyptic number.

3145971 is a deficient number, since it is larger than the sum of its proper divisors (1151133).

3145971 is a wasteful number, since it uses less digits than its factorization.

3145971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25621.

The product of its digits is 3780, while the sum is 30.

The square root of 3145971 is about 1773.6885295902. The cubic root of 3145971 is about 146.5271958116.

The spelling of 3145971 in words is "three million, one hundred forty-five thousand, nine hundred seventy-one".