653316121 has 8 divisors (see below), whose sum is σ = 702334080. Its totient is φ = 605761488.

The previous prime is 653316119. The next prime is 653316133. The reversal of 653316121 is 121613356.

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

It is a cyclic number.

It is not a de Polignac number, because 653316121 - 2¹ = 653316119 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 653316121.

It is not an unprimeable number, because it can be changed into a prime (653316101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364906 + ... + 366691.

It is an arithmetic number, because the mean of its divisors is an integer number (87791760).

Almost surely, 2^653316121 is an apocalyptic number.

It is an amenable number.

653316121 is a deficient number, since it is larger than the sum of its proper divisors (49017959).

653316121 is a wasteful number, since it uses less digits than its factorization.

653316121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731663.

The product of its digits is 3240, while the sum is 28.

The square root of 653316121 is about 25560.0493152889. The cubic root of 653316121 is about 867.7097117482.

Adding to 653316121 its reverse (121613356), we get a palindrome (774929477).

The spelling of 653316121 in words is "six hundred fifty-three million, three hundred sixteen thousand, one hundred twenty-one".