42641197 has 2 divisors, whose sum is σ = 42641198. Its totient is φ = 42641196.

The previous prime is 42641171. The next prime is 42641231. The reversal of 42641197 is 79114624.

42641197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (42641231) can be obtained adding 42641197 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29311396 + 13329801 = 5414^2 + 3651^2 .

It is a cyclic number.

It is not a de Polignac number, because 42641197 - 2⁷ = 42641069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42641147) 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, 21320598 + 21320599.

It is an arithmetic number, because the mean of its divisors is an integer number (21320599).

Almost surely, 2^42641197 is an apocalyptic number.

It is an amenable number.

42641197 is a deficient number, since it is larger than the sum of its proper divisors (1).

42641197 is an equidigital number, since it uses as much as digits as its factorization.

42641197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 42641197 is about 6530.0227411549. The cubic root of 42641197 is about 349.3626414195.

The spelling of 42641197 in words is "forty-two million, six hundred forty-one thousand, one hundred ninety-seven".