42500122 has 8 divisors (see below), whose sum is σ = 72857376. Its totient is φ = 18214332.

The previous prime is 42500111. The next prime is 42500123. The reversal of 42500122 is 22100524.

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

It is a junction number, because it is equal to n+sod(n) for n = 42500096 and 42500105.

It is not an unprimeable number, because it can be changed into a prime (42500123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517848 + ... + 1517875.

It is an arithmetic number, because the mean of its divisors is an integer number (9107172).

Almost surely, 2^42500122 is an apocalyptic number.

42500122 is a deficient number, since it is larger than the sum of its proper divisors (30357254).

42500122 is a wasteful number, since it uses less digits than its factorization.

42500122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035732.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 42500122 is about 6519.2117621688. The cubic root of 42500122 is about 348.9769362678.

Adding to 42500122 its reverse (22100524), we get a palindrome (64600646).

The spelling of 42500122 in words is "forty-two million, five hundred thousand, one hundred twenty-two".