9855131 has 8 divisors (see below), whose sum is σ = 11578224. Its totient is φ = 8269920.

The previous prime is 9855119. The next prime is 9855133. The reversal of 9855131 is 1315589.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9855131 - 2¹⁴ = 9838747 is a prime.

It is a super-2 number, since 2×9855131² = 194247214054322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9855133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34316 + ... + 34601.

It is an arithmetic number, because the mean of its divisors is an integer number (1447278).

Almost surely, 2^9855131 is an apocalyptic number.

9855131 is a deficient number, since it is larger than the sum of its proper divisors (1723093).

9855131 is a wasteful number, since it uses less digits than its factorization.

9855131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68941.

The product of its digits is 5400, while the sum is 32.

The square root of 9855131 is about 3139.2882951395. The cubic root of 9855131 is about 214.3980349355.

It can be divided in two parts, 985 and 5131, that added together give a palindrome (6116).

The spelling of 9855131 in words is "nine million, eight hundred fifty-five thousand, one hundred thirty-one".