7232121 has 12 divisors (see below), whose sum is σ = 11250148. Its totient is φ = 4450464.

The previous prime is 7232111. The next prime is 7232153. The reversal of 7232121 is 1212327.

It can be written as a sum of positive squares in 2 ways, for example, as 3370896 + 3861225 = 1836^2 + 1965^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7232121 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 7232094 and 7232103.

It is not an unprimeable number, because it can be changed into a prime (7232111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30790 + ... + 31023.

Almost surely, 2^7232121 is an apocalyptic number.

It is an amenable number.

7232121 is a deficient number, since it is larger than the sum of its proper divisors (4018027).

7232121 is a wasteful number, since it uses less digits than its factorization.

7232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61832 (or 61829 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 7232121 is about 2689.2603072220. The cubic root of 7232121 is about 193.3846035909.

Adding to 7232121 its reverse (1212327), we get a palindrome (8444448).

The spelling of 7232121 in words is "seven million, two hundred thirty-two thousand, one hundred twenty-one".