42641371 has 2 divisors, whose sum is σ = 42641372. Its totient is φ = 42641370.

The previous prime is 42641369. The next prime is 42641381. The reversal of 42641371 is 17314624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42641371 - 2¹ = 42641369 is a prime.

Together with 42641369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42641351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21320685 + 21320686.

It is an arithmetic number, because the mean of its divisors is an integer number (21320686).

Almost surely, 2^42641371 is an apocalyptic number.

42641371 is a deficient number, since it is larger than the sum of its proper divisors (1).

42641371 is an equidigital number, since it uses as much as digits as its factorization.

42641371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 42641371 is about 6530.0360642189. The cubic root of 42641371 is about 349.3631166173.

Adding to 42641371 its reverse (17314624), we get a palindrome (59955995).

The spelling of 42641371 in words is "forty-two million, six hundred forty-one thousand, three hundred seventy-one".