42091167 has 16 divisors (see below), whose sum is σ = 59581440. Its totient is φ = 26339712.

The previous prime is 42091157. The next prime is 42091183. The reversal of 42091167 is 76119024.

It is a happy number.

It is not a de Polignac number, because 42091167 - 2⁷ = 42091039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42091117) 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 15 ways as a sum of consecutive naturals, for example, 23568 + ... + 25290.

It is an arithmetic number, because the mean of its divisors is an integer number (3723840).

Almost surely, 2^42091167 is an apocalyptic number.

42091167 is a deficient number, since it is larger than the sum of its proper divisors (17490273).

42091167 is a wasteful number, since it uses less digits than its factorization.

42091167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 42091167 is about 6487.7705723923. The cubic root of 42091167 is about 347.8539898107.

The spelling of 42091167 in words is "forty-two million, ninety-one thousand, one hundred sixty-seven".