7145671 has 4 divisors (see below), whose sum is σ = 7695352. Its totient is φ = 6595992.

The previous prime is 7145669. The next prime is 7145681. The reversal of 7145671 is 1765417.

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

It is not a de Polignac number, because 7145671 - 2¹ = 7145669 is a prime.

It is a super-2 number, since 2×7145671² = 102121228080482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7145641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274821 + ... + 274846.

It is an arithmetic number, because the mean of its divisors is an integer number (1923838).

Almost surely, 2^7145671 is an apocalyptic number.

7145671 is a deficient number, since it is larger than the sum of its proper divisors (549681).

7145671 is a wasteful number, since it uses less digits than its factorization.

7145671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549680.

The product of its digits is 5880, while the sum is 31.

The square root of 7145671 is about 2673.1387917577. The cubic root of 7145671 is about 192.6109643028.

The spelling of 7145671 in words is "seven million, one hundred forty-five thousand, six hundred seventy-one".