7631121 has 4 divisors (see below), whose sum is σ = 10174832. Its totient is φ = 5087412.

The previous prime is 7631083. The next prime is 7631123. The reversal of 7631121 is 1211367.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7631121 - 2¹⁷ = 7500049 is a prime.

It is a super-3 number, since 3×7631121³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7631123) 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, 1271851 + ... + 1271856.

It is an arithmetic number, because the mean of its divisors is an integer number (2543708).

Almost surely, 2^7631121 is an apocalyptic number.

It is an amenable number.

7631121 is a deficient number, since it is larger than the sum of its proper divisors (2543711).

7631121 is a wasteful number, since it uses less digits than its factorization.

7631121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543710.

The product of its digits is 252, while the sum is 21.

The square root of 7631121 is about 2762.4483705583. The cubic root of 7631121 is about 196.8775123892.

Adding to 7631121 its reverse (1211367), we get a palindrome (8842488).

The spelling of 7631121 in words is "seven million, six hundred thirty-one thousand, one hundred twenty-one".