85378141 has 4 divisors (see below), whose sum is σ = 85461984. Its totient is φ = 85294300.

The previous prime is 85378103. The next prime is 85378147. The reversal of 85378141 is 14187358.

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 85378141 - 2¹⁷ = 85247069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85378141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85378147) 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 3 ways as a sum of consecutive naturals, for example, 40375 + ... + 42436.

It is an arithmetic number, because the mean of its divisors is an integer number (21365496).

Almost surely, 2^85378141 is an apocalyptic number.

It is an amenable number.

85378141 is a deficient number, since it is larger than the sum of its proper divisors (83843).

85378141 is a wasteful number, since it uses less digits than its factorization.

85378141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83842.

The product of its digits is 26880, while the sum is 37.

The square root of 85378141 is about 9240.0292748454. The cubic root of 85378141 is about 440.3340111897.

The spelling of 85378141 in words is "eighty-five million, three hundred seventy-eight thousand, one hundred forty-one".