971501 has 2 divisors, whose sum is σ = 971502. Its totient is φ = 971500.

The previous prime is 971491. The next prime is 971513. The reversal of 971501 is 105179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 249001 = 850^2 + 499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-971501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (971521) 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 as a sum of consecutive naturals, namely, 485750 + 485751.

It is an arithmetic number, because the mean of its divisors is an integer number (485751).

2⁹⁷¹⁵⁰¹ is an apocalyptic number.

It is an amenable number.

971501 is a deficient number, since it is larger than the sum of its proper divisors (1).

971501 is an equidigital number, since it uses as much as digits as its factorization.

971501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 971501 is about 985.6475029137. The cubic root of 971501 is about 99.0408633132.

The spelling of 971501 in words is "nine hundred seventy-one thousand, five hundred one".