153505109 has 2 divisors, whose sum is σ = 153505110. Its totient is φ = 153505108.

The previous prime is 153505103. The next prime is 153505117. The reversal of 153505109 is 901505351.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146482609 + 7022500 = 12103^2 + 2650^2 .

It is a cyclic number.

It is not a de Polignac number, because 153505109 - 2²⁰ = 152456533 is a prime.

It is a Chen prime.

It is equal to p_8630228 and since 153505109 and 8630228 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153505103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76752554 + 76752555.

It is an arithmetic number, because the mean of its divisors is an integer number (76752555).

Almost surely, 2^153505109 is an apocalyptic number.

It is an amenable number.

153505109 is a deficient number, since it is larger than the sum of its proper divisors (1).

153505109 is an equidigital number, since it uses as much as digits as its factorization.

153505109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3375, while the sum is 29.

The square root of 153505109 is about 12389.7178741084. The cubic root of 153505109 is about 535.4360540802.

The spelling of 153505109 in words is "one hundred fifty-three million, five hundred five thousand, one hundred nine".