112780042 has 4 divisors (see below), whose sum is σ = 169170066. Its totient is φ = 56390020.

The previous prime is 112780039. The next prime is 112780049. The reversal of 112780042 is 240087211.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 77246521 + 35533521 = 8789^2 + 5961^2 .

It is a junction number, because it is equal to n+sod(n) for n = 112779989 and 112780016.

It is not an unprimeable number, because it can be changed into a prime (112780049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28195009 + ... + 28195012.

Almost surely, 2^112780042 is an apocalyptic number.

112780042 is a deficient number, since it is larger than the sum of its proper divisors (56390024).

112780042 is an equidigital number, since it uses as much as digits as its factorization.

112780042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56390023.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 112780042 is about 10619.7948191102. The cubic root of 112780042 is about 483.1449197711.

The spelling of 112780042 in words is "one hundred twelve million, seven hundred eighty thousand, forty-two".