133848273509 has 2 divisors, whose sum is σ = 133848273510. Its totient is φ = 133848273508.

The previous prime is 133848273439. The next prime is 133848273527. The reversal of 133848273509 is 905372848331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94783936900 + 39064336609 = 307870^2 + 197647^2 .

It is a cyclic number.

It is not a de Polignac number, because 133848273509 - 2⁸ = 133848273253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133848273539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66924136754 + 66924136755.

It is an arithmetic number, because the mean of its divisors is an integer number (66924136755).

Almost surely, 2^133848273509 is an apocalyptic number.

It is an amenable number.

133848273509 is a deficient number, since it is larger than the sum of its proper divisors (1).

133848273509 is an equidigital number, since it uses as much as digits as its factorization.

133848273509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 133848273509 in words is "one hundred thirty-three billion, eight hundred forty-eight million, two hundred seventy-three thousand, five hundred nine".