7561165 has 4 divisors (see below), whose sum is σ = 9073404. Its totient is φ = 6048928.

The previous prime is 7561157. The next prime is 7561187. The reversal of 7561165 is 5611657.

7561165 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5611657 = 137 ⋅40961.

It can be written as a sum of positive squares in 2 ways, for example, as 1425636 + 6135529 = 1194^2 + 2477^2 .

It is a cyclic number.

It is not a de Polignac number, because 7561165 - 2³ = 7561157 is a prime.

It is a Duffinian number.

7561165 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756112 + ... + 756121.

It is an arithmetic number, because the mean of its divisors is an integer number (2268351).

Almost surely, 2^7561165 is an apocalyptic number.

It is an amenable number.

7561165 is a deficient number, since it is larger than the sum of its proper divisors (1512239).

7561165 is a wasteful number, since it uses less digits than its factorization.

7561165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512238.

The product of its digits is 6300, while the sum is 31.

The square root of 7561165 is about 2749.7572620142. The cubic root of 7561165 is about 196.2740595545.

The spelling of 7561165 in words is "seven million, five hundred sixty-one thousand, one hundred sixty-five".