112781790 has 48 divisors (see below), whose sum is σ = 319892976. Its totient is φ = 27340800.

The previous prime is 112781789. The next prime is 112781831. The reversal of 112781790 is 97187211.

It is a super-4 number, since 4×112781790⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55971 + ... + 57950.

It is an arithmetic number, because the mean of its divisors is an integer number (6664437).

Almost surely, 2^112781790 is an apocalyptic number.

112781790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112781790 is an abundant number, since it is smaller than the sum of its proper divisors (207111186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112781790 is a wasteful number, since it uses less digits than its factorization.

112781790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113945 (or 113942 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The square root of 112781790 is about 10619.8771179331. The cubic root of 112781790 is about 483.1474158775.

The spelling of 112781790 in words is "one hundred twelve million, seven hundred eighty-one thousand, seven hundred ninety".