111474587557 has 4 divisors (see below), whose sum is σ = 111477545676. Its totient is φ = 111471629440.

The previous prime is 111474587527. The next prime is 111474587617. The reversal of 111474587557 is 755785474111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 755785474111 = 11003 ⋅68689037.

It can be written as a sum of positive squares in 2 ways, for example, as 5241615201 + 106232972356 = 72399^2 + 325934^2 .

It is a cyclic number.

It is not a de Polignac number, because 111474587557 - 2⁷ = 111474587429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111474587498 and 111474587507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111474587527) 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, 1421794 + ... + 1498147.

It is an arithmetic number, because the mean of its divisors is an integer number (27869386419).

Almost surely, 2^111474587557 is an apocalyptic number.

It is an amenable number.

111474587557 is a deficient number, since it is larger than the sum of its proper divisors (2958119).

111474587557 is an equidigital number, since it uses as much as digits as its factorization.

111474587557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958118.

The product of its digits is 5488000, while the sum is 55.

The spelling of 111474587557 in words is "one hundred eleven billion, four hundred seventy-four million, five hundred eighty-seven thousand, five hundred fifty-seven".