654931061 has 2 divisors, whose sum is σ = 654931062. Its totient is φ = 654931060.

The previous prime is 654931033. The next prime is 654931063. The reversal of 654931061 is 160139456.

654931061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 362178961 + 292752100 = 19031^2 + 17110^2 .

It is a cyclic number.

It is not a de Polignac number, because 654931061 - 2¹⁴ = 654914677 is a prime.

Together with 654931063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654931063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327465530 + 327465531.

It is an arithmetic number, because the mean of its divisors is an integer number (327465531).

Almost surely, 2^654931061 is an apocalyptic number.

It is an amenable number.

654931061 is a deficient number, since it is larger than the sum of its proper divisors (1).

654931061 is an equidigital number, since it uses as much as digits as its factorization.

654931061 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 654931061 is about 25591.6209138851. The cubic root of 654931061 is about 868.4240908114.

The spelling of 654931061 in words is "six hundred fifty-four million, nine hundred thirty-one thousand, sixty-one".