112007781 has 12 divisors (see below), whose sum is σ = 171306252. Its totient is φ = 70279296.

The previous prime is 112007761. The next prime is 112007789. The reversal of 112007781 is 187700211.

It can be written as a sum of positive squares in 2 ways, for example, as 59213025 + 52794756 = 7695^2 + 7266^2 .

It is not a de Polignac number, because 112007781 - 2⁷ = 112007653 is a prime.

It is a super-2 number, since 2×112007781² = 25091486009087922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112007789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365886 + ... + 366191.

It is an arithmetic number, because the mean of its divisors is an integer number (14275521).

Almost surely, 2^112007781 is an apocalyptic number.

It is an amenable number.

112007781 is a deficient number, since it is larger than the sum of its proper divisors (59298471).

112007781 is a wasteful number, since it uses less digits than its factorization.

112007781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732100 (or 732097 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 112007781 is about 10583.3728555692. The cubic root of 112007781 is about 482.0396152652.

Adding to 112007781 its reverse (187700211), we get a palindrome (299707992).

It can be divided in two parts, 11200 and 7781, that added together give a palindrome (18981).

The spelling of 112007781 in words is "one hundred twelve million, seven thousand, seven hundred eighty-one".