42173741 has 2 divisors, whose sum is σ = 42173742. Its totient is φ = 42173740.

The previous prime is 42173723. The next prime is 42173759. The reversal of 42173741 is 14737124.

It is a balanced prime because it is at equal distance from previous prime (42173723) and next prime (42173759).

It can be written as a sum of positive squares in only one way, i.e., 34633225 + 7540516 = 5885^2 + 2746^2 .

It is a cyclic number.

It is not a de Polignac number, because 42173741 - 2¹⁰ = 42172717 is a prime.

It is equal to p_2557541 and since 42173741 and 2557541 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 (42173441) 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, 21086870 + 21086871.

It is an arithmetic number, because the mean of its divisors is an integer number (21086871).

Almost surely, 2^42173741 is an apocalyptic number.

It is an amenable number.

42173741 is a deficient number, since it is larger than the sum of its proper divisors (1).

42173741 is an equidigital number, since it uses as much as digits as its factorization.

42173741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 29.

The square root of 42173741 is about 6494.1312736963. The cubic root of 42173741 is about 348.0813132974.

The spelling of 42173741 in words is "forty-two million, one hundred seventy-three thousand, seven hundred forty-one".