7165131 has 4 divisors (see below), whose sum is σ = 9553512. Its totient is φ = 4776752.

The previous prime is 7165097. The next prime is 7165139. The reversal of 7165131 is 1315617.

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

It is a cyclic number.

It is not a de Polignac number, because 7165131 - 2⁷ = 7165003 is a prime.

It is a super-2 number, since 2×7165131² = 102678204494322, which contains 22 as substring.

7165131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7165139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194186 + ... + 1194191.

It is an arithmetic number, because the mean of its divisors is an integer number (2388378).

Almost surely, 2^7165131 is an apocalyptic number.

7165131 is a deficient number, since it is larger than the sum of its proper divisors (2388381).

7165131 is a wasteful number, since it uses less digits than its factorization.

7165131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388380.

The product of its digits is 630, while the sum is 24.

The square root of 7165131 is about 2676.7762327098. The cubic root of 7165131 is about 192.7856533777.

The spelling of 7165131 in words is "seven million, one hundred sixty-five thousand, one hundred thirty-one".