42173113 has 4 divisors (see below), whose sum is σ = 43533568. Its totient is φ = 40812660.

The previous prime is 42173111. The next prime is 42173129. The reversal of 42173113 is 31137124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42173113 - 2¹ = 42173111 is a prime.

It is a super-2 number, since 2×42173113² = 3557142920221538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42173111) 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 in 3 ways as a sum of consecutive naturals, for example, 680181 + ... + 680242.

It is an arithmetic number, because the mean of its divisors is an integer number (10883392).

Almost surely, 2^42173113 is an apocalyptic number.

It is an amenable number.

42173113 is a deficient number, since it is larger than the sum of its proper divisors (1360455).

42173113 is a wasteful number, since it uses less digits than its factorization.

42173113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360454.

The product of its digits is 504, while the sum is 22.

The square root of 42173113 is about 6494.0829221685. The cubic root of 42173113 is about 348.0795855544.

The spelling of 42173113 in words is "forty-two million, one hundred seventy-three thousand, one hundred thirteen".