42152187 has 32 divisors (see below), whose sum is σ = 70447104. Its totient is φ = 21780000.

The previous prime is 42152183. The next prime is 42152221. The reversal of 42152187 is 78125124.

42152187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42152187 - 2² = 42152183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42152183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57618 + ... + 58344.

It is an arithmetic number, because the mean of its divisors is an integer number (2201472).

Almost surely, 2^42152187 is an apocalyptic number.

42152187 is a deficient number, since it is larger than the sum of its proper divisors (28294917).

42152187 is a wasteful number, since it uses less digits than its factorization.

42152187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999.

The product of its digits is 4480, while the sum is 30.

The square root of 42152187 is about 6492.4715632800. The cubic root of 42152187 is about 348.0220044878.

The spelling of 42152187 in words is "forty-two million, one hundred fifty-two thousand, one hundred eighty-seven".