664154339 has 2 divisors, whose sum is σ = 664154340. Its totient is φ = 664154338.

The previous prime is 664154333. The next prime is 664154357. The reversal of 664154339 is 933451466.

664154339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664154339 - 2¹² = 664150243 is a prime.

It is a super-2 number, since 2×664154339² = 882201972025053842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 664154296 and 664154305.

It is not a weakly prime, because it can be changed into another prime (664154333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332077169 + 332077170.

It is an arithmetic number, because the mean of its divisors is an integer number (332077170).

Almost surely, 2^664154339 is an apocalyptic number.

664154339 is a deficient number, since it is larger than the sum of its proper divisors (1).

664154339 is an equidigital number, since it uses as much as digits as its factorization.

664154339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 41.

The square root of 664154339 is about 25771.1920368461. The cubic root of 664154339 is about 872.4817231936.

The spelling of 664154339 in words is "six hundred sixty-four million, one hundred fifty-four thousand, three hundred thirty-nine".