653143651 has 2 divisors, whose sum is σ = 653143652. Its totient is φ = 653143650.

The previous prime is 653143649. The next prime is 653143663. The reversal of 653143651 is 156341356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 653143651 - 2¹ = 653143649 is a prime.

Together with 653143649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (653143691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326571825 + 326571826.

It is an arithmetic number, because the mean of its divisors is an integer number (326571826).

Almost surely, 2^653143651 is an apocalyptic number.

653143651 is a deficient number, since it is larger than the sum of its proper divisors (1).

653143651 is an equidigital number, since it uses as much as digits as its factorization.

653143651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 34.

The square root of 653143651 is about 25556.6752728128. The cubic root of 653143651 is about 867.6333489889.

The spelling of 653143651 in words is "six hundred fifty-three million, one hundred forty-three thousand, six hundred fifty-one".