654193061 has 2 divisors, whose sum is σ = 654193062. Its totient is φ = 654193060.

The previous prime is 654193027. The next prime is 654193073. The reversal of 654193061 is 160391456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444956836 + 209236225 = 21094^2 + 14465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654193061 is a prime.

It is a super-2 number, since 2×654193061² = 855937122121099442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654193021) 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, 327096530 + 327096531.

It is an arithmetic number, because the mean of its divisors is an integer number (327096531).

Almost surely, 2^654193061 is an apocalyptic number.

It is an amenable number.

654193061 is a deficient number, since it is larger than the sum of its proper divisors (1).

654193061 is an equidigital number, since it uses as much as digits as its factorization.

654193061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 654193061 is about 25577.1980678103. The cubic root of 654193061 is about 868.0977776584.

The spelling of 654193061 in words is "six hundred fifty-four million, one hundred ninety-three thousand, sixty-one".