42231503 has 4 divisors (see below), whose sum is σ = 42400008. Its totient is φ = 42063000.

The previous prime is 42231499. The next prime is 42231559. The reversal of 42231503 is 30513224.

It is a happy number.

42231503 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.

It is a cyclic number.

It is not a de Polignac number, because 42231503 - 2² = 42231499 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 (42231103) 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, 83876 + ... + 84377.

It is an arithmetic number, because the mean of its divisors is an integer number (10600002).

Almost surely, 2^42231503 is an apocalyptic number.

42231503 is a deficient number, since it is larger than the sum of its proper divisors (168505).

42231503 is a wasteful number, since it uses less digits than its factorization.

42231503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168504.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42231503 is about 6498.5769980820. The cubic root of 42231503 is about 348.2401538475.

Adding to 42231503 its reverse (30513224), we get a palindrome (72744727).

The spelling of 42231503 in words is "forty-two million, two hundred thirty-one thousand, five hundred three".