42746191 has 2 divisors, whose sum is σ = 42746192. Its totient is φ = 42746190.

The previous prime is 42746183. The next prime is 42746269. The reversal of 42746191 is 19164724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42746191 - 2³ = 42746183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42746101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21373095 + 21373096.

It is an arithmetic number, because the mean of its divisors is an integer number (21373096).

Almost surely, 2^42746191 is an apocalyptic number.

42746191 is a deficient number, since it is larger than the sum of its proper divisors (1).

42746191 is an equidigital number, since it uses as much as digits as its factorization.

42746191 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 42746191 is about 6538.0571273124. The cubic root of 42746191 is about 349.6491477306.

The spelling of 42746191 in words is "forty-two million, seven hundred forty-six thousand, one hundred ninety-one".