153906689 has 2 divisors, whose sum is σ = 153906690. Its totient is φ = 153906688.

The previous prime is 153906673. The next prime is 153906691. The reversal of 153906689 is 986609351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153760000 + 146689 = 12400^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 153906689 - 2⁴ = 153906673 is a prime.

Together with 153906691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (153906659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76953344 + 76953345.

It is an arithmetic number, because the mean of its divisors is an integer number (76953345).

Almost surely, 2^153906689 is an apocalyptic number.

It is an amenable number.

153906689 is a deficient number, since it is larger than the sum of its proper divisors (1).

153906689 is an equidigital number, since it uses as much as digits as its factorization.

153906689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 153906689 is about 12405.9134689873. The cubic root of 153906689 is about 535.9025601165.

The spelling of 153906689 in words is "one hundred fifty-three million, nine hundred six thousand, six hundred eighty-nine".