85184121 has 24 divisors (see below), whose sum is σ = 126922432. Its totient is φ = 50767200.

The previous prime is 85184039. The next prime is 85184123. The reversal of 85184121 is 12148158.

It is a happy number.

It is not a de Polignac number, because 85184121 - 2¹⁴ = 85167737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85184123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20220 + ... + 24066.

Almost surely, 2^85184121 is an apocalyptic number.

It is an amenable number.

85184121 is a deficient number, since it is larger than the sum of its proper divisors (41738311).

85184121 is a wasteful number, since it uses less digits than its factorization.

85184121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933 (or 3922 counting only the distinct ones).

The product of its digits is 2560, while the sum is 30.

The square root of 85184121 is about 9229.5244189503. The cubic root of 85184121 is about 440.0002083332. Note that the first 3 decimals are identical.

The spelling of 85184121 in words is "eighty-five million, one hundred eighty-four thousand, one hundred twenty-one".