112557781 has 8 divisors (see below), whose sum is σ = 130818240. Its totient is φ = 94842528.

The previous prime is 112557727. The next prime is 112557803. The reversal of 112557781 is 187755211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112557781 - 2¹¹ = 112555733 is a prime.

It is a super-2 number, since 2×112557781² = 25338508127287922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 112557781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112557701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135856 + ... + 136681.

It is an arithmetic number, because the mean of its divisors is an integer number (16352280).

Almost surely, 2^112557781 is an apocalyptic number.

It is an amenable number.

112557781 is a deficient number, since it is larger than the sum of its proper divisors (18260459).

112557781 is an equidigital number, since it uses as much as digits as its factorization.

112557781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272603.

The product of its digits is 19600, while the sum is 37.

The square root of 112557781 is about 10609.3251906047. The cubic root of 112557781 is about 482.8273254791.

The spelling of 112557781 in words is "one hundred twelve million, five hundred fifty-seven thousand, seven hundred eighty-one".