846131197 has 2 divisors, whose sum is σ = 846131198. Its totient is φ = 846131196.

The previous prime is 846131171. The next prime is 846131249. The reversal of 846131197 is 791131648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 770284516 + 75846681 = 27754^2 + 8709^2 .

It is a cyclic number.

It is not a de Polignac number, because 846131197 - 2¹¹ = 846129149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846131137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423065598 + 423065599.

It is an arithmetic number, because the mean of its divisors is an integer number (423065599).

Almost surely, 2^846131197 is an apocalyptic number.

It is an amenable number.

846131197 is a deficient number, since it is larger than the sum of its proper divisors (1).

846131197 is an equidigital number, since it uses as much as digits as its factorization.

846131197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 846131197 is about 29088.3343799538. The cubic root of 846131197 is about 945.8288770118.

The spelling of 846131197 in words is "eight hundred forty-six million, one hundred thirty-one thousand, one hundred ninety-seven".