7145441 has 4 divisors (see below), whose sum is σ = 7152900. Its totient is φ = 7137984.

The previous prime is 7145417. The next prime is 7145443. The reversal of 7145441 is 1445417.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2819041 + 4326400 = 1679^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 7145441 - 2⁶ = 7145377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7145441.

It is not an unprimeable number, because it can be changed into a prime (7145443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036 + ... + 4293.

It is an arithmetic number, because the mean of its divisors is an integer number (1788225).

Almost surely, 2^7145441 is an apocalyptic number.

It is an amenable number.

7145441 is a deficient number, since it is larger than the sum of its proper divisors (7459).

7145441 is a wasteful number, since it uses less digits than its factorization.

7145441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7458.

The product of its digits is 2240, while the sum is 26.

The square root of 7145441 is about 2673.0957708245. The cubic root of 7145441 is about 192.6088977370.

The spelling of 7145441 in words is "seven million, one hundred forty-five thousand, four hundred forty-one".