7611121 has 12 divisors (see below), whose sum is σ = 9375588. Its totient is φ = 6139392.

The previous prime is 7611119. The next prime is 7611127. The reversal of 7611121 is 1211167.

It can be written as a sum of positive squares in 2 ways, for example, as 2371600 + 5239521 = 1540^2 + 2289^2 .

It is not a de Polignac number, because 7611121 - 2¹ = 7611119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7611127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3736 + ... + 5401.

It is an arithmetic number, because the mean of its divisors is an integer number (781299).

Almost surely, 2^7611121 is an apocalyptic number.

It is an amenable number.

7611121 is a deficient number, since it is larger than the sum of its proper divisors (1764467).

7611121 is a wasteful number, since it uses less digits than its factorization.

7611121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9168 (or 9161 counting only the distinct ones).

The product of its digits is 84, while the sum is 19.

The square root of 7611121 is about 2758.8260184361. The cubic root of 7611121 is about 196.7053666380.

Adding to 7611121 its reverse (1211167), we get a palindrome (8822288).

The spelling of 7611121 in words is "seven million, six hundred eleven thousand, one hundred twenty-one".