112551721 has 2 divisors, whose sum is σ = 112551722. Its totient is φ = 112551720.

The previous prime is 112551709. The next prime is 112551727. The reversal of 112551721 is 127155211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58308496 + 54243225 = 7636^2 + 7365^2 .

It is a cyclic number.

It is not a de Polignac number, because 112551721 - 2⁵ = 112551689 is a prime.

It is not a weakly prime, because it can be changed into another prime (112551727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56275860 + 56275861.

It is an arithmetic number, because the mean of its divisors is an integer number (56275861).

Almost surely, 2^112551721 is an apocalyptic number.

It is an amenable number.

112551721 is a deficient number, since it is larger than the sum of its proper divisors (1).

112551721 is an equidigital number, since it uses as much as digits as its factorization.

112551721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 700, while the sum is 25.

The square root of 112551721 is about 10609.0395889543. The cubic root of 112551721 is about 482.8186603411.

The spelling of 112551721 in words is "one hundred twelve million, five hundred fifty-one thousand, seven hundred twenty-one".