112721893 has 2 divisors, whose sum is σ = 112721894. Its totient is φ = 112721892.

The previous prime is 112721891. The next prime is 112721929. The reversal of 112721893 is 398127211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112508449 + 213444 = 10607^2 + 462^2 .

It is a cyclic number.

It is not a de Polignac number, because 112721893 - 2¹ = 112721891 is a prime.

Together with 112721891, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112721891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56360946 + 56360947.

It is an arithmetic number, because the mean of its divisors is an integer number (56360947).

Almost surely, 2^112721893 is an apocalyptic number.

It is an amenable number.

112721893 is a deficient number, since it is larger than the sum of its proper divisors (1).

112721893 is an equidigital number, since it uses as much as digits as its factorization.

112721893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 112721893 is about 10617.0567013650. The cubic root of 112721893 is about 483.0618695455.

The spelling of 112721893 in words is "one hundred twelve million, seven hundred twenty-one thousand, eight hundred ninety-three".