654057331 has 2 divisors, whose sum is σ = 654057332. Its totient is φ = 654057330.

The previous prime is 654057319. The next prime is 654057359. The reversal of 654057331 is 133750456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654057331 - 2¹³ = 654049139 is a prime.

It is a super-2 number, since 2×654057331² = 855581984469687122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (654057301) 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, 327028665 + 327028666.

It is an arithmetic number, because the mean of its divisors is an integer number (327028666).

Almost surely, 2^654057331 is an apocalyptic number.

654057331 is a deficient number, since it is larger than the sum of its proper divisors (1).

654057331 is an equidigital number, since it uses as much as digits as its factorization.

654057331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 654057331 is about 25574.5445902757. The cubic root of 654057331 is about 868.0377367377.

The spelling of 654057331 in words is "six hundred fifty-four million, fifty-seven thousand, three hundred thirty-one".