42503122 has 8 divisors (see below), whose sum is σ = 63869616. Its totient is φ = 21213252.

The previous prime is 42503119. The next prime is 42503129. The reversal of 42503122 is 22130524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42503122.

It is not an unprimeable number, because it can be changed into a prime (42503129) 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, 17748 + ... + 19999.

It is an arithmetic number, because the mean of its divisors is an integer number (7983702).

Almost surely, 2^42503122 is an apocalyptic number.

42503122 is a deficient number, since it is larger than the sum of its proper divisors (21366494).

42503122 is a wasteful number, since it uses less digits than its factorization.

42503122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38312.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42503122 is about 6519.4418472750. The cubic root of 42503122 is about 348.9851472731.

Adding to 42503122 its reverse (22130524), we get a palindrome (64633646).

The spelling of 42503122 in words is "forty-two million, five hundred three thousand, one hundred twenty-two".