85497123 has 4 divisors (see below), whose sum is σ = 113996168. Its totient is φ = 56998080.

The previous prime is 85497091. The next prime is 85497151. The reversal of 85497123 is 32179458.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85497123 - 2⁵ = 85497091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85497323) 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 3 ways as a sum of consecutive naturals, for example, 14249518 + ... + 14249523.

It is an arithmetic number, because the mean of its divisors is an integer number (28499042).

Almost surely, 2^85497123 is an apocalyptic number.

85497123 is a deficient number, since it is larger than the sum of its proper divisors (28499045).

85497123 is a wasteful number, since it uses less digits than its factorization.

85497123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28499044.

The product of its digits is 60480, while the sum is 39.

The square root of 85497123 is about 9246.4654328019. The cubic root of 85497123 is about 440.5384643904.

The spelling of 85497123 in words is "eighty-five million, four hundred ninety-seven thousand, one hundred twenty-three".