112642261 has 4 divisors (see below), whose sum is σ = 112669900. Its totient is φ = 112614624.

The previous prime is 112642259. The next prime is 112642267. The reversal of 112642261 is 162246211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162246211 = 6337 ⋅25603.

It can be written as a sum of positive squares in 2 ways, for example, as 72573361 + 40068900 = 8519^2 + 6330^2 .

It is a cyclic number.

It is not a de Polignac number, because 112642261 - 2¹ = 112642259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112642267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6366 + ... + 16303.

It is an arithmetic number, because the mean of its divisors is an integer number (28167475).

Almost surely, 2^112642261 is an apocalyptic number.

It is an amenable number.

112642261 is a deficient number, since it is larger than the sum of its proper divisors (27639).

112642261 is an equidigital number, since it uses as much as digits as its factorization.

112642261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27638.

The product of its digits is 1152, while the sum is 25.

The square root of 112642261 is about 10613.3058469075. The cubic root of 112642261 is about 482.9480902738.

Adding to 112642261 its reverse (162246211), we get a palindrome (274888472).

The spelling of 112642261 in words is "one hundred twelve million, six hundred forty-two thousand, two hundred sixty-one".