85120003 has 4 divisors (see below), whose sum is σ = 90127080. Its totient is φ = 80112928.

The previous prime is 85119997. The next prime is 85120039. The reversal of 85120003 is 30002158.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85120003 - 2²¹ = 83022851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85120043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503513 + ... + 2503546.

It is an arithmetic number, because the mean of its divisors is an integer number (22531770).

Almost surely, 2^85120003 is an apocalyptic number.

85120003 is a deficient number, since it is larger than the sum of its proper divisors (5007077).

85120003 is a wasteful number, since it uses less digits than its factorization.

85120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007076.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 85120003 is about 9226.0502383198. The cubic root of 85120003 is about 439.8897847224.

The spelling of 85120003 in words is "eighty-five million, one hundred twenty thousand, three".