9855151 has 2 divisors, whose sum is σ = 9855152. Its totient is φ = 9855150.

The previous prime is 9855149. The next prime is 9855161. The reversal of 9855151 is 1515589.

9855151 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9855151 - 2¹ = 9855149 is a prime.

Together with 9855149, 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 (9855161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4927575 + 4927576.

It is an arithmetic number, because the mean of its divisors is an integer number (4927576).

Almost surely, 2^9855151 is an apocalyptic number.

9855151 is a deficient number, since it is larger than the sum of its proper divisors (1).

9855151 is an equidigital number, since it uses as much as digits as its factorization.

9855151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 34.

The square root of 9855151 is about 3139.2914805733. The cubic root of 9855151 is about 214.3981799685.

The spelling of 9855151 in words is "nine million, eight hundred fifty-five thousand, one hundred fifty-one".