112941821 has 2 divisors, whose sum is σ = 112941822. Its totient is φ = 112941820.

The previous prime is 112941769. The next prime is 112941823. The reversal of 112941821 is 128149211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88548100 + 24393721 = 9410^2 + 4939^2 .

It is a cyclic number.

It is not a de Polignac number, because 112941821 - 2¹⁴ = 112925437 is a prime.

Together with 112941823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112941823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56470910 + 56470911.

It is an arithmetic number, because the mean of its divisors is an integer number (56470911).

Almost surely, 2^112941821 is an apocalyptic number.

It is an amenable number.

112941821 is a deficient number, since it is larger than the sum of its proper divisors (1).

112941821 is an equidigital number, since it uses as much as digits as its factorization.

112941821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 29.

The square root of 112941821 is about 10627.4089504451. The cubic root of 112941821 is about 483.3758275229.

The spelling of 112941821 in words is "one hundred twelve million, nine hundred forty-one thousand, eight hundred twenty-one".