42201673 has 2 divisors, whose sum is σ = 42201674. Its totient is φ = 42201672.

The previous prime is 42201671. The next prime is 42201689. The reversal of 42201673 is 37610224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39287824 + 2913849 = 6268^2 + 1707^2 .

It is a cyclic number.

It is not a de Polignac number, because 42201673 - 2¹ = 42201671 is a prime.

Together with 42201671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42201671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21100836 + 21100837.

It is an arithmetic number, because the mean of its divisors is an integer number (21100837).

Almost surely, 2^42201673 is an apocalyptic number.

It is an amenable number.

42201673 is a deficient number, since it is larger than the sum of its proper divisors (1).

42201673 is an equidigital number, since it uses as much as digits as its factorization.

42201673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 42201673 is about 6496.2814748131. The cubic root of 42201673 is about 348.1581420013.

Adding to 42201673 its reverse (37610224), we get a palindrome (79811897).

The spelling of 42201673 in words is "forty-two million, two hundred one thousand, six hundred seventy-three".