7132181 has 8 divisors (see below), whose sum is σ = 8285184. Its totient is φ = 6012720.

The previous prime is 7132171. The next prime is 7132187. The reversal of 7132181 is 1812317.

It is a happy number.

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

It is not a de Polignac number, because 7132181 - 2⁶ = 7132117 is a prime.

It is a super-2 number, since 2×7132181² = 101736011633522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7132187) 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 7 ways as a sum of consecutive naturals, for example, 7925 + ... + 8778.

It is an arithmetic number, because the mean of its divisors is an integer number (1035648).

Almost surely, 2^7132181 is an apocalyptic number.

It is an amenable number.

7132181 is a deficient number, since it is larger than the sum of its proper divisors (1153003).

7132181 is a wasteful number, since it uses less digits than its factorization.

7132181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16771.

The product of its digits is 336, while the sum is 23.

The square root of 7132181 is about 2670.6143487969. The cubic root of 7132181 is about 192.4896806747.

Adding to 7132181 its reverse (1812317), we get a palindrome (8944498).

The spelling of 7132181 in words is "seven million, one hundred thirty-two thousand, one hundred eighty-one".