3145071 has 4 divisors (see below), whose sum is σ = 4193432. Its totient is φ = 2096712.

The previous prime is 3145057. The next prime is 3145091. The reversal of 3145071 is 1705413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1705413 = 3 ⋅568471.

It is not a de Polignac number, because 3145071 - 2¹⁴ = 3128687 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145091) 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, 524176 + ... + 524181.

It is an arithmetic number, because the mean of its divisors is an integer number (1048358).

Almost surely, 2^3145071 is an apocalyptic number.

3145071 is a deficient number, since it is larger than the sum of its proper divisors (1048361).

3145071 is a wasteful number, since it uses less digits than its factorization.

3145071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048360.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 3145071 is about 1773.4348028614. The cubic root of 3145071 is about 146.5132216359.

The spelling of 3145071 in words is "three million, one hundred forty-five thousand, seventy-one".