854135140 has 12 divisors (see below), whose sum is σ = 1793683836. Its totient is φ = 341654048.

The previous prime is 854135137. The next prime is 854135143. The reversal of 854135140 is 41531458.

It is an interprime number because it is at equal distance from previous prime (854135137) and next prime (854135143).

It can be written as a sum of positive squares in 2 ways, for example, as 586027264 + 268107876 = 24208^2 + 16374^2 .

It is not an unprimeable number, because it can be changed into a prime (854135143) 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, 21353359 + ... + 21353398.

It is an arithmetic number, because the mean of its divisors is an integer number (149473653).

Almost surely, 2^854135140 is an apocalyptic number.

It is an amenable number.

854135140 is an abundant number, since it is smaller than the sum of its proper divisors (939548696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

854135140 is a wasteful number, since it uses less digits than its factorization.

854135140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42706766 (or 42706764 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 854135140 is about 29225.5904987393. The cubic root of 854135140 is about 948.8018653626.

Adding to 854135140 its reverse (41531458), we get a palindrome (895666598).

It can be divided in two parts, 8541 and 35140, that added together give a square (43681 = 209²).

The spelling of 854135140 in words is "eight hundred fifty-four million, one hundred thirty-five thousand, one hundred forty".