6742251 has 32 divisors (see below), whose sum is σ = 10889280. Its totient is φ = 4105728.

The previous prime is 6742249. The next prime is 6742259. The reversal of 6742251 is 1522476.

It is not a de Polignac number, because 6742251 - 2¹ = 6742249 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 (6742259) 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, 16785 + ... + 17181.

It is an arithmetic number, because the mean of its divisors is an integer number (340290).

Almost surely, 2^6742251 is an apocalyptic number.

6742251 is a deficient number, since it is larger than the sum of its proper divisors (4147029).

6742251 is a wasteful number, since it uses less digits than its factorization.

6742251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 454 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 6742251 is about 2596.5844873603. The cubic root of 6742251 is about 188.9158103241.

The spelling of 6742251 in words is "six million, seven hundred forty-two thousand, two hundred fifty-one".