971151 has 4 divisors (see below), whose sum is σ = 1294872. Its totient is φ = 647432.

The previous prime is 971149. The next prime is 971153. The reversal of 971151 is 151179.

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

It is an interprime number because it is at equal distance from previous prime (971149) and next prime (971153).

It is a cyclic number.

It is not a de Polignac number, because 971151 - 2¹ = 971149 is a prime.

It is a D-number.

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 in 3 ways as a sum of consecutive naturals, for example, 161856 + ... + 161861.

It is an arithmetic number, because the mean of its divisors is an integer number (323718).

2⁹⁷¹¹⁵¹ is an apocalyptic number.

971151 is a deficient number, since it is larger than the sum of its proper divisors (323721).

971151 is a wasteful number, since it uses less digits than its factorization.

971151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323720.

The product of its digits is 315, while the sum is 24.

The square root of 971151 is about 985.4699386587. The cubic root of 971151 is about 99.0289681579.

The spelling of 971151 in words is "nine hundred seventy-one thousand, one hundred fifty-one".