7145871 has 4 divisors (see below), whose sum is σ = 9527832. Its totient is φ = 4763912.

The previous prime is 7145867. The next prime is 7145917. The reversal of 7145871 is 1785417.

7145871 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1785417 = 3 ⋅595139.

It is a cyclic number.

It is not a de Polignac number, because 7145871 - 2² = 7145867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7145821) 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, 1190976 + ... + 1190981.

It is an arithmetic number, because the mean of its divisors is an integer number (2381958).

Almost surely, 2^7145871 is an apocalyptic number.

7145871 is a deficient number, since it is larger than the sum of its proper divisors (2381961).

7145871 is a wasteful number, since it uses less digits than its factorization.

7145871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381960.

The product of its digits is 7840, while the sum is 33.

The square root of 7145871 is about 2673.1762007021. The cubic root of 7145871 is about 192.6127612804.

The spelling of 7145871 in words is "seven million, one hundred forty-five thousand, eight hundred seventy-one".