5161523 has 4 divisors (see below), whose sum is σ = 5465160. Its totient is φ = 4857888.

The previous prime is 5161517. The next prime is 5161529. The reversal of 5161523 is 3251615.

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

It is an interprime number because it is at equal distance from previous prime (5161517) and next prime (5161529).

It is a cyclic number.

It is not a de Polignac number, because 5161523 - 2⁸ = 5161267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5161529) by changing a digit.

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, 151793 + ... + 151826.

It is an arithmetic number, because the mean of its divisors is an integer number (1366290).

Almost surely, 2^5161523 is an apocalyptic number.

5161523 is a deficient number, since it is larger than the sum of its proper divisors (303637).

5161523 is a wasteful number, since it uses less digits than its factorization.

5161523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303636.

The product of its digits is 900, while the sum is 23.

The square root of 5161523 is about 2271.8985452700. The cubic root of 5161523 is about 172.8194514533.

The spelling of 5161523 in words is "five million, one hundred sixty-one thousand, five hundred twenty-three".