7145445 has 8 divisors (see below), whose sum is σ = 11432736. Its totient is φ = 3810896.

The previous prime is 7145443. The next prime is 7145473. The reversal of 7145445 is 5445417.

7145445 is nontrivially palindromic in base 14.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7145445 - 2¹ = 7145443 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7145443) 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 7 ways as a sum of consecutive naturals, for example, 238167 + ... + 238196.

It is an arithmetic number, because the mean of its divisors is an integer number (1429092).

Almost surely, 2^7145445 is an apocalyptic number.

It is an amenable number.

7145445 is a deficient number, since it is larger than the sum of its proper divisors (4287291).

7145445 is a wasteful number, since it uses less digits than its factorization.

7145445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476371.

The product of its digits is 11200, while the sum is 30.

The square root of 7145445 is about 2673.0965190206. The cubic root of 7145445 is about 192.6089336776.

The spelling of 7145445 in words is "seven million, one hundred forty-five thousand, four hundred forty-five".