971145 has 24 divisors (see below), whose sum is σ = 1924416. Its totient is φ = 443808.

The previous prime is 971143. The next prime is 971149. The reversal of 971145 is 541179.

971145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 971145 - 2¹ = 971143 is a prime.

It is a super-2 number, since 2×971145² = 1886245222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (971141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1227 + ... + 1856.

It is an arithmetic number, because the mean of its divisors is an integer number (80184).

2⁹⁷¹¹⁴⁵ is an apocalyptic number.

It is an amenable number.

971145 is a deficient number, since it is larger than the sum of its proper divisors (953271).

971145 is a wasteful number, since it uses less digits than its factorization.

971145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101 (or 3098 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 971145 is about 985.4668944211. The cubic root of 971145 is about 99.0287642160.

The spelling of 971145 in words is "nine hundred seventy-one thousand, one hundred forty-five".