112451144557 has 4 divisors (see below), whose sum is σ = 112942197820. Its totient is φ = 111960091296.

The previous prime is 112451144539. The next prime is 112451144579. The reversal of 112451144557 is 755441154211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104475047076 + 7976097481 = 323226^2 + 89309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112451144557 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 (112451144957) 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, 245526288 + ... + 245526745.

It is an arithmetic number, because the mean of its divisors is an integer number (28235549455).

Almost surely, 2^112451144557 is an apocalyptic number.

It is an amenable number.

112451144557 is a deficient number, since it is larger than the sum of its proper divisors (491053263).

112451144557 is an equidigital number, since it uses as much as digits as its factorization.

112451144557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491053262.

The product of its digits is 112000, while the sum is 40.

Adding to 112451144557 its reverse (755441154211), we get a palindrome (867892298768).

The spelling of 112451144557 in words is "one hundred twelve billion, four hundred fifty-one million, one hundred forty-four thousand, five hundred fifty-seven".