7132621 has 4 divisors (see below), whose sum is σ = 7140700. Its totient is φ = 7124544.

The previous prime is 7132603. The next prime is 7132627. The reversal of 7132621 is 1262317.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1262317 = 7 ⋅180331.

It can be written as a sum of positive squares in 2 ways, for example, as 2340900 + 4791721 = 1530^2 + 2189^2 .

It is a cyclic number.

It is not a de Polignac number, because 7132621 - 2⁷ = 7132493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7132592 and 7132601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7132627) 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, 2526 + ... + 4543.

It is an arithmetic number, because the mean of its divisors is an integer number (1785175).

Almost surely, 2^7132621 is an apocalyptic number.

It is an amenable number.

7132621 is a deficient number, since it is larger than the sum of its proper divisors (8079).

7132621 is a wasteful number, since it uses less digits than its factorization.

7132621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8078.

The product of its digits is 504, while the sum is 22.

The square root of 7132621 is about 2670.6967255756. The cubic root of 7132621 is about 192.4936389645.

Adding to 7132621 its reverse (1262317), we get a palindrome (8394938).

The spelling of 7132621 in words is "seven million, one hundred thirty-two thousand, six hundred twenty-one".