85245123 has 16 divisors (see below), whose sum is σ = 124498080. Its totient is φ = 51641856.

The previous prime is 85245119. The next prime is 85245137. The reversal of 85245123 is 32154258.

It is not a de Polignac number, because 85245123 - 2² = 85245119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85245103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27340 + ... + 30297.

It is an arithmetic number, because the mean of its divisors is an integer number (7781130).

Almost surely, 2^85245123 is an apocalyptic number.

85245123 is a deficient number, since it is larger than the sum of its proper divisors (39252957).

85245123 is a wasteful number, since it uses less digits than its factorization.

85245123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57686.

The product of its digits is 9600, while the sum is 30.

The square root of 85245123 is about 9232.8285481753. The cubic root of 85245123 is about 440.1052141639.

The spelling of 85245123 in words is "eighty-five million, two hundred forty-five thousand, one hundred twenty-three".