7285412161 has 8 divisors (see below), whose sum is σ = 7544773800. Its totient is φ = 7026593280.

The previous prime is 7285412149. The next prime is 7285412177. The reversal of 7285412161 is 1612145827.

It can be written as a sum of positive squares in 4 ways, for example, as 89113600 + 7196298561 = 9440^2 + 84831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7285412161 - 2¹¹ = 7285410113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7285412161.

It is not an unprimeable number, because it can be changed into a prime (7285412131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108270 + ... + 162151.

It is an arithmetic number, because the mean of its divisors is an integer number (943096725).

Almost surely, 2^7285412161 is an apocalyptic number.

It is an amenable number.

7285412161 is a deficient number, since it is larger than the sum of its proper divisors (259361639).

7285412161 is a wasteful number, since it uses less digits than its factorization.

7285412161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271379.

The product of its digits is 26880, while the sum is 37.

The square root of 7285412161 is about 85354.6258910435. The cubic root of 7285412161 is about 1938.5843784894.

Adding to 7285412161 its reverse (1612145827), we get a palindrome (8897557988).

The spelling of 7285412161 in words is "seven billion, two hundred eighty-five million, four hundred twelve thousand, one hundred sixty-one".