42140131 has 8 divisors (see below), whose sum is σ = 46401984. Its totient is φ = 37950120.

The previous prime is 42140123. The next prime is 42140167. The reversal of 42140131 is 13104124.

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

It is a cyclic number.

It is not a de Polignac number, because 42140131 - 2³ = 42140123 is a prime.

It is a super-2 number, since 2×42140131² = 3551581281394322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42140831) 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, 16725 + ... + 19078.

It is an arithmetic number, because the mean of its divisors is an integer number (5800248).

Almost surely, 2^42140131 is an apocalyptic number.

42140131 is a deficient number, since it is larger than the sum of its proper divisors (4261853).

42140131 is a wasteful number, since it uses less digits than its factorization.

42140131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35921.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 42140131 is about 6491.5430369058. The cubic root of 42140131 is about 347.9888219204.

Adding to 42140131 its reverse (13104124), we get a palindrome (55244255).

The spelling of 42140131 in words is "forty-two million, one hundred forty thousand, one hundred thirty-one".