7551361 has 4 divisors (see below), whose sum is σ = 7561300. Its totient is φ = 7541424.

The previous prime is 7551343. The next prime is 7551371. The reversal of 7551361 is 1631557.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2421136 + 5130225 = 1556^2 + 2265^2 .

It is a cyclic number.

It is not a de Polignac number, because 7551361 - 2⁵ = 7551329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7551331) 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 3 ways as a sum of consecutive naturals, for example, 3726 + ... + 5383.

It is an arithmetic number, because the mean of its divisors is an integer number (1890325).

Almost surely, 2^7551361 is an apocalyptic number.

It is an amenable number.

7551361 is a deficient number, since it is larger than the sum of its proper divisors (9939).

7551361 is an equidigital number, since it uses as much as digits as its factorization.

7551361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9938.

The product of its digits is 3150, while the sum is 28.

The square root of 7551361 is about 2747.9739809540. The cubic root of 7551361 is about 196.1891915407.

It can be divided in two parts, 755 and 1361, that added together give a square (2116 = 46²).

The spelling of 7551361 in words is "seven million, five hundred fifty-one thousand, three hundred sixty-one".