85380133 has 4 divisors (see below), whose sum is σ = 85412448. Its totient is φ = 85347820.

The previous prime is 85380109. The next prime is 85380151. The reversal of 85380133 is 33108358.

85380133 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85380133 - 2⁹ = 85379621 is a prime.

It is a super-2 number, since 2×85380133² = 14579534222195378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85380095 and 85380104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85380833) 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, 11803 + ... + 17608.

It is an arithmetic number, because the mean of its divisors is an integer number (21353112).

Almost surely, 2^85380133 is an apocalyptic number.

It is an amenable number.

85380133 is a deficient number, since it is larger than the sum of its proper divisors (32315).

85380133 is a wasteful number, since it uses less digits than its factorization.

85380133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32314.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 85380133 is about 9240.1370660829. The cubic root of 85380133 is about 440.3374357138.

The spelling of 85380133 in words is "eighty-five million, three hundred eighty thousand, one hundred thirty-three".