42745193 has 4 divisors (see below), whose sum is σ = 44994960. Its totient is φ = 40495428.

The previous prime is 42745181. The next prime is 42745207. The reversal of 42745193 is 39154724.

42745193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42745193 - 2⁴ = 42745177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42745163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124855 + ... + 1124892.

It is an arithmetic number, because the mean of its divisors is an integer number (11248740).

Almost surely, 2^42745193 is an apocalyptic number.

It is an amenable number.

42745193 is a deficient number, since it is larger than the sum of its proper divisors (2249767).

42745193 is a wasteful number, since it uses less digits than its factorization.

42745193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249766.

The product of its digits is 30240, while the sum is 35.

The square root of 42745193 is about 6537.9808044992. The cubic root of 42745193 is about 349.6464266105.

The spelling of 42745193 in words is "forty-two million, seven hundred forty-five thousand, one hundred ninety-three".