7141945 has 4 divisors (see below), whose sum is σ = 8570340. Its totient is φ = 5713552.

The previous prime is 7141943. The next prime is 7141949. The reversal of 7141945 is 5491417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4822416 + 2319529 = 2196^2 + 1523^2 .

It is a cyclic number.

It is not a de Polignac number, because 7141945 - 2¹ = 7141943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7141943) 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, 714190 + ... + 714199.

It is an arithmetic number, because the mean of its divisors is an integer number (2142585).

Almost surely, 2^7141945 is an apocalyptic number.

It is an amenable number.

7141945 is a deficient number, since it is larger than the sum of its proper divisors (1428395).

7141945 is a wasteful number, since it uses less digits than its factorization.

7141945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428394.

The product of its digits is 5040, while the sum is 31.

The square root of 7141945 is about 2672.4417673731. The cubic root of 7141945 is about 192.5774804761.

The spelling of 7141945 in words is "seven million, one hundred forty-one thousand, nine hundred forty-five".