112125661 has 2 divisors, whose sum is σ = 112125662. Its totient is φ = 112125660.

The previous prime is 112125641. The next prime is 112125683. The reversal of 112125661 is 166521211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111957561 + 168100 = 10581^2 + 410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112125661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112125641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56062830 + 56062831.

It is an arithmetic number, because the mean of its divisors is an integer number (56062831).

Almost surely, 2^112125661 is an apocalyptic number.

It is an amenable number.

112125661 is a deficient number, since it is larger than the sum of its proper divisors (1).

112125661 is an equidigital number, since it uses as much as digits as its factorization.

112125661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 25.

The square root of 112125661 is about 10588.9405041298. The cubic root of 112125661 is about 482.2086597936.

Adding to 112125661 its reverse (166521211), we get a palindrome (278646872).

The spelling of 112125661 in words is "one hundred twelve million, one hundred twenty-five thousand, six hundred sixty-one".