6523161 has 4 divisors (see below), whose sum is σ = 8697552. Its totient is φ = 4348772.

The previous prime is 6523133. The next prime is 6523163. The reversal of 6523161 is 1613256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6523161 - 2¹³ = 6514969 is a prime.

It is a D-number.

6523161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6523163) 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, 1087191 + ... + 1087196.

It is an arithmetic number, because the mean of its divisors is an integer number (2174388).

Almost surely, 2^6523161 is an apocalyptic number.

It is an amenable number.

6523161 is a deficient number, since it is larger than the sum of its proper divisors (2174391).

6523161 is a wasteful number, since it uses less digits than its factorization.

6523161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174390.

The product of its digits is 1080, while the sum is 24.

The square root of 6523161 is about 2554.0479635277. The cubic root of 6523161 is about 186.8469583916.

The spelling of 6523161 in words is "six million, five hundred twenty-three thousand, one hundred sixty-one".