42531122 has 8 divisors (see below), whose sum is σ = 65000556. Its totient is φ = 20864272.

The previous prime is 42531119. The next prime is 42531133. The reversal of 42531122 is 22113524.

It can be written as a sum of positive squares in 2 ways, for example, as 41229241 + 1301881 = 6421^2 + 1141^2 .

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 = 42531094 and 42531103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200513 + ... + 200724.

Almost surely, 2^42531122 is an apocalyptic number.

42531122 is a deficient number, since it is larger than the sum of its proper divisors (22469434).

42531122 is a wasteful number, since it uses less digits than its factorization.

42531122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401292.

The product of its digits is 480, while the sum is 20.

The square root of 42531122 is about 6521.5889168208. The cubic root of 42531122 is about 349.0617646970.

Adding to 42531122 its reverse (22113524), we get a palindrome (64644646).

The spelling of 42531122 in words is "forty-two million, five hundred thirty-one thousand, one hundred twenty-two".