85109001 has 8 divisors (see below), whose sum is σ = 114483360. Its totient is φ = 56236992.

The previous prime is 85108973. The next prime is 85109023. The reversal of 85109001 is 10090158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85109001 - 2⁷ = 85108873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85105001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125191 + ... + 125868.

It is an arithmetic number, because the mean of its divisors is an integer number (14310420).

Almost surely, 2^85109001 is an apocalyptic number.

It is an amenable number.

85109001 is a deficient number, since it is larger than the sum of its proper divisors (29374359).

85109001 is a wasteful number, since it uses less digits than its factorization.

85109001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251175.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 85109001 is about 9225.4539725696. The cubic root of 85109001 is about 439.8708315748.

Adding to 85109001 its reverse (10090158), we get a palindrome (95199159).

The spelling of 85109001 in words is "eighty-five million, one hundred nine thousand, one".