8435220113 has 2 divisors, whose sum is σ = 8435220114. Its totient is φ = 8435220112.

The previous prime is 8435220091. The next prime is 8435220121. The reversal of 8435220113 is 3110225348.

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., 6950890384 + 1484329729 = 83372^2 + 38527^2 .

It is a cyclic number.

It is not a de Polignac number, because 8435220113 - 2²² = 8431025809 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8435220133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4217610056 + 4217610057.

It is an arithmetic number, because the mean of its divisors is an integer number (4217610057).

Almost surely, 2^8435220113 is an apocalyptic number.

It is an amenable number.

8435220113 is a deficient number, since it is larger than the sum of its proper divisors (1).

8435220113 is an equidigital number, since it uses as much as digits as its factorization.

8435220113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 8435220113 is about 91843.4543829880. The cubic root of 8435220113 is about 2035.6298310263.

The spelling of 8435220113 in words is "eight billion, four hundred thirty-five million, two hundred twenty thousand, one hundred thirteen".