331170061 has 2 divisors, whose sum is σ = 331170062. Its totient is φ = 331170060.

The previous prime is 331170041. The next prime is 331170071. The reversal of 331170061 is 160071133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291555625 + 39614436 = 17075^2 + 6294^2 .

It is a cyclic number.

It is not a de Polignac number, because 331170061 - 2¹³ = 331161869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331170001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165585030 + 165585031.

It is an arithmetic number, because the mean of its divisors is an integer number (165585031).

Almost surely, 2^331170061 is an apocalyptic number.

It is an amenable number.

331170061 is a deficient number, since it is larger than the sum of its proper divisors (1).

331170061 is an equidigital number, since it uses as much as digits as its factorization.

331170061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 331170061 is about 18198.0784974678. The cubic root of 331170061 is about 691.8580885837.

The spelling of 331170061 in words is "three hundred thirty-one million, one hundred seventy thousand, sixty-one".