971156 has 6 divisors (see below), whose sum is σ = 1699530. Its totient is φ = 485576.

The previous prime is 971153. The next prime is 971171. The reversal of 971156 is 651179.

It is a happy number.

971156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 586756 + 384400 = 766^2 + 620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121391 + ... + 121398.

It is an arithmetic number, because the mean of its divisors is an integer number (283255).

2⁹⁷¹¹⁵⁶ is an apocalyptic number.

It is an amenable number.

971156 is a deficient number, since it is larger than the sum of its proper divisors (728374).

971156 is a wasteful number, since it uses less digits than its factorization.

971156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242793 (or 242791 counting only the distinct ones).

The product of its digits is 1890, while the sum is 29.

The square root of 971156 is about 985.4724755162. The cubic root of 971156 is about 99.0291381088.

The spelling of 971156 in words is "nine hundred seventy-one thousand, one hundred fifty-six".