9861123 has 8 divisors (see below), whose sum is σ = 13244688. Its totient is φ = 6525824.

The previous prime is 9861109. The next prime is 9861143. The reversal of 9861123 is 3211689.

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 9861123 - 2¹⁰ = 9860099 is a prime.

It is a super-2 number, since 2×9861123² = 194483493642258, which contains 22 as substring.

9861123 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (9861143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11586 + ... + 12407.

It is an arithmetic number, because the mean of its divisors is an integer number (1655586).

Almost surely, 2^9861123 is an apocalyptic number.

9861123 is a deficient number, since it is larger than the sum of its proper divisors (3383565).

9861123 is a wasteful number, since it uses less digits than its factorization.

9861123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24133.

The product of its digits is 2592, while the sum is 30.

The square root of 9861123 is about 3140.2425065590. The cubic root of 9861123 is about 214.4414780499.

It can be divided in two parts, 9861 and 123, that multiplied together give a triangular number (1212903 = T₁₅₅₇).

The spelling of 9861123 in words is "nine million, eight hundred sixty-one thousand, one hundred twenty-three".