42103207 has 4 divisors (see below), whose sum is σ = 42512080. Its totient is φ = 41694336.

The previous prime is 42103199. The next prime is 42103219. The reversal of 42103207 is 70230124.

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

It is a cyclic number.

It is not a de Polignac number, because 42103207 - 2³ = 42103199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42103267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204282 + ... + 204487.

It is an arithmetic number, because the mean of its divisors is an integer number (10628020).

Almost surely, 2^42103207 is an apocalyptic number.

42103207 is a deficient number, since it is larger than the sum of its proper divisors (408873).

42103207 is a wasteful number, since it uses less digits than its factorization.

42103207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408872.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 42103207 is about 6488.6984056897. The cubic root of 42103207 is about 347.8871540354.

The spelling of 42103207 in words is "forty-two million, one hundred three thousand, two hundred seven".