42134181 has 8 divisors (see below), whose sum is σ = 56758464. Its totient is φ = 27799680.

The previous prime is 42134179. The next prime is 42134189. The reversal of 42134181 is 18143124.

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

It is not a de Polignac number, because 42134181 - 2¹ = 42134179 is a prime.

It is a super-2 number, since 2×42134181² = 3550578417081522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42134189) 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, 72105 + ... + 72686.

It is an arithmetic number, because the mean of its divisors is an integer number (7094808).

Almost surely, 2^42134181 is an apocalyptic number.

It is an amenable number.

42134181 is a deficient number, since it is larger than the sum of its proper divisors (14624283).

42134181 is a wasteful number, since it uses less digits than its factorization.

42134181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144891.

The product of its digits is 768, while the sum is 24.

The square root of 42134181 is about 6491.0847321538. The cubic root of 42134181 is about 347.9724429890.

The spelling of 42134181 in words is "forty-two million, one hundred thirty-four thousand, one hundred eighty-one".