113048821 has 2 divisors, whose sum is σ = 113048822. Its totient is φ = 113048820.

The previous prime is 113048809. The next prime is 113048843. The reversal of 113048821 is 128840311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70980625 + 42068196 = 8425^2 + 6486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113048821 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113048821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113048891) 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, 56524410 + 56524411.

It is an arithmetic number, because the mean of its divisors is an integer number (56524411).

Almost surely, 2^113048821 is an apocalyptic number.

It is an amenable number.

113048821 is a deficient number, since it is larger than the sum of its proper divisors (1).

113048821 is an equidigital number, since it uses as much as digits as its factorization.

113048821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 113048821 is about 10632.4419114331. The cubic root of 113048821 is about 483.5284278862.

The spelling of 113048821 in words is "one hundred thirteen million, forty-eight thousand, eight hundred twenty-one".