42152005 has 12 divisors (see below), whose sum is σ = 58841100. Its totient is φ = 28904064.

The previous prime is 42151999. The next prime is 42152017. The reversal of 42152005 is 50025124.

It can be written as a sum of positive squares in 2 ways, for example, as 26399044 + 15752961 = 5138^2 + 3969^2 .

It is not a de Polignac number, because 42152005 - 2⁵ = 42151973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85780 + ... + 86269.

It is an arithmetic number, because the mean of its divisors is an integer number (4903425).

Almost surely, 2^42152005 is an apocalyptic number.

It is an amenable number.

42152005 is a deficient number, since it is larger than the sum of its proper divisors (16689095).

42152005 is a wasteful number, since it uses less digits than its factorization.

42152005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172068 (or 172061 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 42152005 is about 6492.4575470310. The cubic root of 42152005 is about 348.0215036036.

Adding to 42152005 its reverse (50025124), we get a palindrome (92177129).

The spelling of 42152005 in words is "forty-two million, one hundred fifty-two thousand, five".