42095181 has 8 divisors (see below), whose sum is σ = 56182464. Its totient is φ = 28035680.

The previous prime is 42095171. The next prime is 42095201. The reversal of 42095181 is 18159024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42095181 is a prime.

It is a super-2 number, since 2×42095181² = 3544008526845522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42095161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3105 + ... + 9686.

It is an arithmetic number, because the mean of its divisors is an integer number (7022808).

Almost surely, 2^42095181 is an apocalyptic number.

It is an amenable number.

42095181 is a deficient number, since it is larger than the sum of its proper divisors (14087283).

42095181 is a wasteful number, since it uses less digits than its factorization.

42095181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13891.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 42095181 is about 6488.0799162772. The cubic root of 42095181 is about 347.8650470913.

The spelling of 42095181 in words is "forty-two million, ninety-five thousand, one hundred eighty-one".