42103345 has 4 divisors (see below), whose sum is σ = 50524020. Its totient is φ = 33682672.

The previous prime is 42103337. The next prime is 42103357. The reversal of 42103345 is 54330124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25644096 + 16459249 = 5064^2 + 4057^2 .

It is a cyclic number.

It is not a de Polignac number, because 42103345 - 2³ = 42103337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4210330 + ... + 4210339.

It is an arithmetic number, because the mean of its divisors is an integer number (12631005).

Almost surely, 2^42103345 is an apocalyptic number.

It is an amenable number.

42103345 is a deficient number, since it is larger than the sum of its proper divisors (8420675).

42103345 is an equidigital number, since it uses as much as digits as its factorization.

42103345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8420674.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 42103345 is about 6488.7090395548. The cubic root of 42103345 is about 347.8875341203.

Adding to 42103345 its reverse (54330124), we get a palindrome (96433469).

The spelling of 42103345 in words is "forty-two million, one hundred three thousand, three hundred forty-five".