331701197 has 2 divisors, whose sum is σ = 331701198. Its totient is φ = 331701196.

The previous prime is 331701173. The next prime is 331701199. The reversal of 331701197 is 791107133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169546441 + 162154756 = 13021^2 + 12734^2 .

It is an emirp because it is prime and its reverse (791107133) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331701197 is a prime.

It is a super-2 number, since 2×331701197² = 220051368182465618, which contains 22 as substring.

Together with 331701199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331701199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165850598 + 165850599.

It is an arithmetic number, because the mean of its divisors is an integer number (165850599).

Almost surely, 2^331701197 is an apocalyptic number.

It is an amenable number.

331701197 is a deficient number, since it is larger than the sum of its proper divisors (1).

331701197 is an equidigital number, since it uses as much as digits as its factorization.

331701197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 331701197 is about 18212.6658400136. The cubic root of 331701197 is about 692.2277621582.

The spelling of 331701197 in words is "three hundred thirty-one million, seven hundred one thousand, one hundred ninety-seven".