653512943 has 2 divisors, whose sum is σ = 653512944. Its totient is φ = 653512942.

The previous prime is 653512921. The next prime is 653512967. The reversal of 653512943 is 349215356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 653512943 - 2²⁰ = 652464367 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 653512897 and 653512906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653512903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326756471 + 326756472.

It is an arithmetic number, because the mean of its divisors is an integer number (326756472).

Almost surely, 2^653512943 is an apocalyptic number.

653512943 is a deficient number, since it is larger than the sum of its proper divisors (1).

653512943 is an equidigital number, since it uses as much as digits as its factorization.

653512943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 38.

The square root of 653512943 is about 25563.8992135394. The cubic root of 653512943 is about 867.7968401728.

The spelling of 653512943 in words is "six hundred fifty-three million, five hundred twelve thousand, nine hundred forty-three".