653121347 has 2 divisors, whose sum is σ = 653121348. Its totient is φ = 653121346.

The previous prime is 653121341. The next prime is 653121377. The reversal of 653121347 is 743121356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 653121347 - 2¹⁶ = 653055811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (653121341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326560673 + 326560674.

It is an arithmetic number, because the mean of its divisors is an integer number (326560674).

Almost surely, 2^653121347 is an apocalyptic number.

653121347 is a deficient number, since it is larger than the sum of its proper divisors (1).

653121347 is an equidigital number, since it uses as much as digits as its factorization.

653121347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 653121347 is about 25556.2389055980. The cubic root of 653121347 is about 867.6234726958.

Subtracting 653121347 from its reverse (743121356), we obtain a palindrome (90000009).

The spelling of 653121347 in words is "six hundred fifty-three million, one hundred twenty-one thousand, three hundred forty-seven".