112639601 has 4 divisors (see below), whose sum is σ = 113800932. Its totient is φ = 111478272.

The previous prime is 112639591. The next prime is 112639613. The reversal of 112639601 is 106936211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106936211 = 179 ⋅597409.

It can be written as a sum of positive squares in 2 ways, for example, as 19536400 + 93103201 = 4420^2 + 9649^2 .

It is a cyclic number.

It is not a de Polignac number, because 112639601 - 2⁶ = 112639537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112639621) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 580520 + ... + 580713.

It is an arithmetic number, because the mean of its divisors is an integer number (28450233).

Almost surely, 2^112639601 is an apocalyptic number.

It is an amenable number.

112639601 is a deficient number, since it is larger than the sum of its proper divisors (1161331).

112639601 is an equidigital number, since it uses as much as digits as its factorization.

112639601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161330.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 112639601 is about 10613.1805317727. The cubic root of 112639601 is about 482.9442887046.

The spelling of 112639601 in words is "one hundred twelve million, six hundred thirty-nine thousand, six hundred one".