6140691 has 20 divisors (see below), whose sum is σ = 9374112. Its totient is φ = 4004208.

The previous prime is 6140671. The next prime is 6140707. The reversal of 6140691 is 1960416.

6140691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6140691 - 2²¹ = 4043539 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 (6140671) 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 19 ways as a sum of consecutive naturals, for example, 3001 + ... + 4613.

Almost surely, 2^6140691 is an apocalyptic number.

6140691 is a deficient number, since it is larger than the sum of its proper divisors (3233421).

6140691 is a wasteful number, since it uses less digits than its factorization.

6140691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 6140691 is about 2478.0417672025. The cubic root of 6140691 is about 183.1213921797.

The spelling of 6140691 in words is "six million, one hundred forty thousand, six hundred ninety-one".