7147045 has 4 divisors (see below), whose sum is σ = 8576460. Its totient is φ = 5717632.

The previous prime is 7147039. The next prime is 7147093. The reversal of 7147045 is 5407417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5407417 = 2087 ⋅2591.

It can be written as a sum of positive squares in 2 ways, for example, as 2455489 + 4691556 = 1567^2 + 2166^2 .

It is a cyclic number.

It is not a de Polignac number, because 7147045 - 2³ = 7147037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714700 + ... + 714709.

It is an arithmetic number, because the mean of its divisors is an integer number (2144115).

Almost surely, 2^7147045 is an apocalyptic number.

It is an amenable number.

7147045 is a deficient number, since it is larger than the sum of its proper divisors (1429415).

7147045 is a wasteful number, since it uses less digits than its factorization.

7147045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429414.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 7147045 is about 2673.3957806505. The cubic root of 7147045 is about 192.6233088633.

The spelling of 7147045 in words is "seven million, one hundred forty-seven thousand, forty-five".