140112451517 has 4 divisors (see below), whose sum is σ = 140119125276. Its totient is φ = 140105777760.

The previous prime is 140112451459. The next prime is 140112451543. The reversal of 140112451517 is 715154211041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 715154211041 = 21169 ⋅33783089.

It can be written as a sum of positive squares in 2 ways, for example, as 82950336121 + 57162115396 = 288011^2 + 239086^2 .

It is a cyclic number.

It is not a de Polignac number, because 140112451517 - 2¹⁰ = 140112450493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140112451597) 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, 3305288 + ... + 3347409.

It is an arithmetic number, because the mean of its divisors is an integer number (35029781319).

Almost surely, 2^140112451517 is an apocalyptic number.

It is an amenable number.

140112451517 is a deficient number, since it is larger than the sum of its proper divisors (6673759).

140112451517 is an equidigital number, since it uses as much as digits as its factorization.

140112451517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6673758.

The product of its (nonzero) digits is 5600, while the sum is 32.

Adding to 140112451517 its reverse (715154211041), we get a palindrome (855266662558).

The spelling of 140112451517 in words is "one hundred forty billion, one hundred twelve million, four hundred fifty-one thousand, five hundred seventeen".