97147 has 4 divisors (see below), whose sum is σ = 102280. Its totient is φ = 92016.

The previous prime is 97127. The next prime is 97151. The reversal of 97147 is 74179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74179 = 7 ⋅10597.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2538 + ... + 2575.

It is an arithmetic number, because the mean of its divisors is an integer number (25570).

2⁹⁷¹⁴⁷ is an apocalyptic number.

97147 is a deficient number, since it is larger than the sum of its proper divisors (5133).

97147 is a wasteful number, since it uses less digits than its factorization.

97147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132.

The product of its digits is 1764, while the sum is 28.

The square root of 97147 is about 311.6841349828. The cubic root of 97147 is about 45.9702075518.

The spelling of 97147 in words is "ninety-seven thousand, one hundred forty-seven".