7132281 has 16 divisors (see below), whose sum is σ = 10481856. Its totient is φ = 4286016.

The previous prime is 7132267. The next prime is 7132283. The reversal of 7132281 is 1822317.

It is not a de Polignac number, because 7132281 - 2⁵ = 7132249 is a prime.

It is a super-2 number, since 2×7132281² = 101738864525922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7132283) 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 15 ways as a sum of consecutive naturals, for example, 450 + ... + 3803.

It is an arithmetic number, because the mean of its divisors is an integer number (655116).

Almost surely, 2^7132281 is an apocalyptic number.

It is an amenable number.

7132281 is a deficient number, since it is larger than the sum of its proper divisors (3349575).

7132281 is a wasteful number, since it uses less digits than its factorization.

7132281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312.

The product of its digits is 672, while the sum is 24.

The square root of 7132281 is about 2670.6330710152. The cubic root of 7132281 is about 192.4905803003.

Adding to 7132281 its reverse (1822317), we get a palindrome (8954598).

The spelling of 7132281 in words is "seven million, one hundred thirty-two thousand, two hundred eighty-one".