853001123 has 4 divisors (see below), whose sum is σ = 918616608. Its totient is φ = 787385640.

The previous prime is 853001101. The next prime is 853001137. The reversal of 853001123 is 321100358.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321100358 = 2 ⋅160550179.

It is a cyclic number.

It is not a de Polignac number, because 853001123 - 2¹² = 852997027 is a prime.

It is a super-2 number, since 2×853001123² = 1455221831678522258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (853007123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32807723 + ... + 32807748.

It is an arithmetic number, because the mean of its divisors is an integer number (229654152).

Almost surely, 2^853001123 is an apocalyptic number.

853001123 is a deficient number, since it is larger than the sum of its proper divisors (65615485).

853001123 is a wasteful number, since it uses less digits than its factorization.

853001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65615484.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 853001123 is about 29206.1829584080. The cubic root of 853001123 is about 948.3817780636.

The spelling of 853001123 in words is "eight hundred fifty-three million, one thousand, one hundred twenty-three".