42133172 has 12 divisors (see below), whose sum is σ = 76275780. Its totient is φ = 20340096.

The previous prime is 42133159. The next prime is 42133193. The reversal of 42133172 is 27133124.

It can be written as a sum of positive squares in 2 ways, for example, as 10278436 + 31854736 = 3206^2 + 5644^2 .

It is a congruent number.

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, 181493 + ... + 181724.

It is an arithmetic number, because the mean of its divisors is an integer number (6356315).

Almost surely, 2^42133172 is an apocalyptic number.

It is an amenable number.

42133172 is a deficient number, since it is larger than the sum of its proper divisors (34142608).

42133172 is a wasteful number, since it uses less digits than its factorization.

42133172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363250 (or 363248 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 42133172 is about 6491.0070097020. The cubic root of 42133172 is about 347.9696652996.

Adding to 42133172 its reverse (27133124), we get a palindrome (69266296).

The spelling of 42133172 in words is "forty-two million, one hundred thirty-three thousand, one hundred seventy-two".