42361187 has 4 divisors (see below), whose sum is σ = 46212216. Its totient is φ = 38510160.

The previous prime is 42361183. The next prime is 42361201. The reversal of 42361187 is 78116324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42361187 - 2² = 42361183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42361183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1925498 + ... + 1925519.

It is an arithmetic number, because the mean of its divisors is an integer number (11553054).

Almost surely, 2^42361187 is an apocalyptic number.

42361187 is a deficient number, since it is larger than the sum of its proper divisors (3851029).

42361187 is a wasteful number, since it uses less digits than its factorization.

42361187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851028.

The product of its digits is 8064, while the sum is 32.

The square root of 42361187 is about 6508.5472265322. The cubic root of 42361187 is about 348.5962468492.

The spelling of 42361187 in words is "forty-two million, three hundred sixty-one thousand, one hundred eighty-seven".