654621059 has 2 divisors, whose sum is σ = 654621060. Its totient is φ = 654621058.

The previous prime is 654621053. The next prime is 654621103. The reversal of 654621059 is 950126456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654621059 - 2¹⁶ = 654555523 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (654621053) 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 as a sum of consecutive naturals, namely, 327310529 + 327310530.

It is an arithmetic number, because the mean of its divisors is an integer number (327310530).

Almost surely, 2^654621059 is an apocalyptic number.

654621059 is a deficient number, since it is larger than the sum of its proper divisors (1).

654621059 is an equidigital number, since it uses as much as digits as its factorization.

654621059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 654621059 is about 25585.5634880297. The cubic root of 654621059 is about 868.2870505903.

The spelling of 654621059 in words is "six hundred fifty-four million, six hundred twenty-one thousand, fifty-nine".