140412131 has 4 divisors (see below), whose sum is σ = 140919312. Its totient is φ = 139904952.

The previous prime is 140412121. The next prime is 140412169. The reversal of 140412131 is 131214041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140412131 - 2⁶ = 140412067 is a prime.

It is a super-2 number, since 2×140412131² = 39431133063922322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140412121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253175 + ... + 253728.

It is an arithmetic number, because the mean of its divisors is an integer number (35229828).

Almost surely, 2^140412131 is an apocalyptic number.

140412131 is a deficient number, since it is larger than the sum of its proper divisors (507181).

140412131 is an equidigital number, since it uses as much as digits as its factorization.

140412131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507180.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 140412131 is about 11849.5624813746. The cubic root of 140412131 is about 519.7584319281.

Adding to 140412131 its reverse (131214041), we get a palindrome (271626172).

The spelling of 140412131 in words is "one hundred forty million, four hundred twelve thousand, one hundred thirty-one".