65461121 has 6 divisors (see below), whose sum is σ = 71953266. Its totient is φ = 59510000.

The previous prime is 65461111. The next prime is 65461141. The reversal of 65461121 is 12116456.

It can be written as a sum of positive squares in only one way, i.e., 63600625 + 1860496 = 7975^2 + 1364^2 .

It is not a de Polignac number, because 65461121 - 2¹⁰ = 65460097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65461111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270380 + ... + 270621.

It is an arithmetic number, because the mean of its divisors is an integer number (11992211).

Almost surely, 2^65461121 is an apocalyptic number.

It is an amenable number.

65461121 is a deficient number, since it is larger than the sum of its proper divisors (6492145).

65461121 is a wasteful number, since it uses less digits than its factorization.

65461121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541023 (or 541012 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 65461121 is about 8090.8047189387. The cubic root of 65461121 is about 403.0211266214.

Adding to 65461121 its reverse (12116456), we get a palindrome (77577577).

It can be divided in two parts, 6546 and 1121, that added together give a palindrome (7667).

The spelling of 65461121 in words is "sixty-five million, four hundred sixty-one thousand, one hundred twenty-one".