7321126 has 4 divisors (see below), whose sum is σ = 10981692. Its totient is φ = 3660562.

The previous prime is 7321123. The next prime is 7321129. The reversal of 7321126 is 6211237.

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

It is an interprime number because it is at equal distance from previous prime (7321123) and next prime (7321129).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7321097 and 7321106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7321121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830280 + ... + 1830283.

It is an arithmetic number, because the mean of its divisors is an integer number (2745423).

Almost surely, 2^7321126 is an apocalyptic number.

7321126 is a deficient number, since it is larger than the sum of its proper divisors (3660566).

7321126 is a wasteful number, since it uses less digits than its factorization.

7321126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660565.

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

The square root of 7321126 is about 2705.7579344797. The cubic root of 7321126 is about 194.1746929660.

It can be divided in two parts, 73211 and 26, that added together give a palindrome (73237).

The spelling of 7321126 in words is "seven million, three hundred twenty-one thousand, one hundred twenty-six".