42125122 has 32 divisors (see below), whose sum is σ = 71406720. Its totient is φ = 18506880.

The previous prime is 42125119. The next prime is 42125137. The reversal of 42125122 is 22152124.

It is a self number, because there is not a number n which added to its sum of digits gives 42125122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45379 + ... + 46297.

It is an arithmetic number, because the mean of its divisors is an integer number (2231460).

Almost surely, 2^42125122 is an apocalyptic number.

42125122 is a deficient number, since it is larger than the sum of its proper divisors (29281598).

42125122 is a wasteful number, since it uses less digits than its factorization.

42125122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018.

The product of its digits is 320, while the sum is 19.

The square root of 42125122 is about 6490.3868913956. The cubic root of 42125122 is about 347.9475027605.

Adding to 42125122 its reverse (22152124), we get a palindrome (64277246).

The spelling of 42125122 in words is "forty-two million, one hundred twenty-five thousand, one hundred twenty-two".