7130561 has 8 divisors (see below), whose sum is σ = 7355040. Its totient is φ = 6908832.

The previous prime is 7130551. The next prime is 7130573. The reversal of 7130561 is 1650317.

7130561 = T₉₄ + T₉₅ + ... + T₃₅₁.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7130561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7130551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5381 + ... + 6573.

It is an arithmetic number, because the mean of its divisors is an integer number (919380).

Almost surely, 2^7130561 is an apocalyptic number.

It is an amenable number.

7130561 is a deficient number, since it is larger than the sum of its proper divisors (224479).

7130561 is a wasteful number, since it uses less digits than its factorization.

7130561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 7130561 is about 2670.3110305730. The cubic root of 7130561 is about 192.4751055681.

Adding to 7130561 its reverse (1650317), we get a palindrome (8780878).

The spelling of 7130561 in words is "seven million, one hundred thirty thousand, five hundred sixty-one".