112721929 has 2 divisors, whose sum is σ = 112721930. Its totient is φ = 112721928.

The previous prime is 112721893. The next prime is 112721941. The reversal of 112721929 is 929127211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99201600 + 13520329 = 9960^2 + 3677^2 .

It is a cyclic number.

It is not a de Polignac number, because 112721929 - 2¹¹ = 112719881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112721894 and 112721903.

It is not a weakly prime, because it can be changed into another prime (112721969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56360964 + 56360965.

It is an arithmetic number, because the mean of its divisors is an integer number (56360965).

Almost surely, 2^112721929 is an apocalyptic number.

It is an amenable number.

112721929 is a deficient number, since it is larger than the sum of its proper divisors (1).

112721929 is an equidigital number, since it uses as much as digits as its factorization.

112721929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 34.

The square root of 112721929 is about 10617.0583967500. The cubic root of 112721929 is about 483.0619209707.

The spelling of 112721929 in words is "one hundred twelve million, seven hundred twenty-one thousand, nine hundred twenty-nine".