40131142 has 8 divisors (see below), whose sum is σ = 60349536. Its totient is φ = 20014632.

The previous prime is 40131137. The next prime is 40131149. The reversal of 40131142 is 24113104.

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

It is a super-2 number, since 2×40131142² = 3221017116448328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40131149) 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, 24478 + ... + 26065.

It is an arithmetic number, because the mean of its divisors is an integer number (7543692).

Almost surely, 2^40131142 is an apocalyptic number.

40131142 is a deficient number, since it is larger than the sum of its proper divisors (20218394).

40131142 is a wasteful number, since it uses less digits than its factorization.

40131142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50942.

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

The square root of 40131142 is about 6334.9145219174. The cubic root of 40131142 is about 342.3685310683.

Adding to 40131142 its reverse (24113104), we get a palindrome (64244246).

The spelling of 40131142 in words is "forty million, one hundred thirty-one thousand, one hundred forty-two".