6745144 has 24 divisors (see below), whose sum is σ = 14712840. Its totient is φ = 2890608.

The previous prime is 6745129. The next prime is 6745147. The reversal of 6745144 is 4415476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6745147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8212 + ... + 8995.

It is an arithmetic number, because the mean of its divisors is an integer number (613035).

Almost surely, 2^6745144 is an apocalyptic number.

It is an amenable number.

6745144 is an abundant number, since it is smaller than the sum of its proper divisors (7967696).

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

6745144 is a wasteful number, since it uses less digits than its factorization.

6745144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17227 (or 17216 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 6745144 is about 2597.1415055788. The cubic root of 6745144 is about 188.9428267853.

It can be divided in two parts, 6745 and 144, that added together give a square (6889 = 83²).

The spelling of 6745144 in words is "six million, seven hundred forty-five thousand, one hundred forty-four".