653341121 has 4 divisors (see below), whose sum is σ = 655402452. Its totient is φ = 651279792.

The previous prime is 653341111. The next prime is 653341141. The reversal of 653341121 is 121143356.

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 55294096 + 598047025 = 7436^2 + 24455^2 .

It is a cyclic number.

It is not a de Polignac number, because 653341121 - 2¹⁸ = 653078977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653341111) 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, 1030190 + ... + 1030823.

It is an arithmetic number, because the mean of its divisors is an integer number (163850613).

Almost surely, 2^653341121 is an apocalyptic number.

It is an amenable number.

653341121 is a deficient number, since it is larger than the sum of its proper divisors (2061331).

653341121 is a wasteful number, since it uses less digits than its factorization.

653341121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061330.

The product of its digits is 2160, while the sum is 26.

The square root of 653341121 is about 25560.5383550503. The cubic root of 653341121 is about 867.7207796245.

Adding to 653341121 its reverse (121143356), we get a palindrome (774484477).

The spelling of 653341121 in words is "six hundred fifty-three million, three hundred forty-one thousand, one hundred twenty-one".