42015203 has 4 divisors (see below), whose sum is σ = 42200520. Its totient is φ = 41829888.

The previous prime is 42015179. The next prime is 42015247. The reversal of 42015203 is 30251024.

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 42015203 - 2¹⁴ = 41998819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42015263) 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, 92318 + ... + 92771.

It is an arithmetic number, because the mean of its divisors is an integer number (10550130).

Almost surely, 2^42015203 is an apocalyptic number.

42015203 is a deficient number, since it is larger than the sum of its proper divisors (185317).

42015203 is a wasteful number, since it uses less digits than its factorization.

42015203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185316.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 42015203 is about 6481.9135291980. The cubic root of 42015203 is about 347.6446007252.

Adding to 42015203 its reverse (30251024), we get a palindrome (72266227).

The spelling of 42015203 in words is "forty-two million, fifteen thousand, two hundred three".