140443112531451 has 4 divisors (see below), whose sum is σ = 187257483375272. Its totient is φ = 93628741687632.

The previous prime is 140443112531413. The next prime is 140443112531467. The reversal of 140443112531451 is 154135211344041.

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

It is not a de Polignac number, because 140443112531451 - 2⁶ = 140443112531387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140443112532451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23407185421906 + ... + 23407185421911.

It is an arithmetic number, because the mean of its divisors is an integer number (46814370843818).

Almost surely, 2^{140443112531451} is an apocalyptic number.

140443112531451 is a deficient number, since it is larger than the sum of its proper divisors (46814370843821).

140443112531451 is an equidigital number, since it uses as much as digits as its factorization.

140443112531451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46814370843820.

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 140443112531451 its reverse (154135211344041), we get a palindrome (294578323875492).

The spelling of 140443112531451 in words is "one hundred forty trillion, four hundred forty-three billion, one hundred twelve million, five hundred thirty-one thousand, four hundred fifty-one".