6840153 has 32 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 4302720.

The previous prime is 6840109. The next prime is 6840157. The reversal of 6840153 is 3510486.

It is not a de Polignac number, because 6840153 - 2⁸ = 6839897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6840157) 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 31 ways as a sum of consecutive naturals, for example, 40876 + ... + 41042.

It is an arithmetic number, because the mean of its divisors is an integer number (335160).

Almost surely, 2^6840153 is an apocalyptic number.

It is an amenable number.

6840153 is a deficient number, since it is larger than the sum of its proper divisors (3884967).

6840153 is a wasteful number, since it uses less digits than its factorization.

6840153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 6840153 is about 2615.3686164669. The cubic root of 6840153 is about 189.8258145074.

The spelling of 6840153 in words is "six million, eight hundred forty thousand, one hundred fifty-three".