7144445 has 36 divisors (see below), whose sum is σ = 11007612. Its totient is φ = 4435200.

The previous prime is 7144433. The next prime is 7144447. The reversal of 7144445 is 5444417.

7144445 = T₂₀ + T₂₁ + ... + T₃₄₉.

It is a happy number.

7144445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4008004 + 3136441 = 2002^2 + 1771^2 .

It is not a de Polignac number, because 7144445 - 2⁴ = 7144429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7144447) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29525 + ... + 29765.

It is an arithmetic number, because the mean of its divisors is an integer number (305767).

Almost surely, 2^7144445 is an apocalyptic number.

It is an amenable number.

7144445 is a deficient number, since it is larger than the sum of its proper divisors (3863167).

7144445 is a wasteful number, since it uses less digits than its factorization.

7144445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 264 counting only the distinct ones).

The product of its digits is 8960, while the sum is 29.

The square root of 7144445 is about 2672.9094634873. The cubic root of 7144445 is about 192.5999480969.

The spelling of 7144445 in words is "seven million, one hundred forty-four thousand, four hundred forty-five".