113820851 has 2 divisors, whose sum is σ = 113820852. Its totient is φ = 113820850.

The previous prime is 113820827. The next prime is 113820869. The reversal of 113820851 is 158028311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113820851 - 2⁶ = 113820787 is a prime.

It is a super-2 number, since 2×113820851² = 25910372244728402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113820821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56910425 + 56910426.

It is an arithmetic number, because the mean of its divisors is an integer number (56910426).

Almost surely, 2^113820851 is an apocalyptic number.

113820851 is a deficient number, since it is larger than the sum of its proper divisors (1).

113820851 is an equidigital number, since it uses as much as digits as its factorization.

113820851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 113820851 is about 10668.6855329042. The cubic root of 113820851 is about 484.6266315503.

The spelling of 113820851 in words is "one hundred thirteen million, eight hundred twenty thousand, eight hundred fifty-one".