42173059 has 2 divisors, whose sum is σ = 42173060. Its totient is φ = 42173058.

The previous prime is 42173057. The next prime is 42173093. The reversal of 42173059 is 95037124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42173059 - 2¹ = 42173057 is a prime.

Together with 42173057, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42173059.

It is not a weakly prime, because it can be changed into another prime (42173057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21086529 + 21086530.

It is an arithmetic number, because the mean of its divisors is an integer number (21086530).

Almost surely, 2^42173059 is an apocalyptic number.

42173059 is a deficient number, since it is larger than the sum of its proper divisors (1).

42173059 is an equidigital number, since it uses as much as digits as its factorization.

42173059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 42173059 is about 6494.0787645362. The cubic root of 42173059 is about 348.0794369897.

The spelling of 42173059 in words is "forty-two million, one hundred seventy-three thousand, fifty-nine".