931198061 has 2 divisors, whose sum is σ = 931198062. Its totient is φ = 931198060.

The previous prime is 931198019. The next prime is 931198087. The reversal of 931198061 is 160891139.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 767844100 + 163353961 = 27710^2 + 12781^2 .

It is an emirp because it is prime and its reverse (160891139) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 931198061 - 2²⁶ = 864089197 is a prime.

It is equal to p_47521496 and since 931198061 and 47521496 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (931198561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465599030 + 465599031.

It is an arithmetic number, because the mean of its divisors is an integer number (465599031).

Almost surely, 2^931198061 is an apocalyptic number.

It is an amenable number.

931198061 is a deficient number, since it is larger than the sum of its proper divisors (1).

931198061 is an equidigital number, since it uses as much as digits as its factorization.

931198061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 931198061 is about 30515.5380257337. The cubic root of 931198061 is about 976.5189773974.

The spelling of 931198061 in words is "nine hundred thirty-one million, one hundred ninety-eight thousand, sixty-one".