133405485989 has 2 divisors, whose sum is σ = 133405485990. Its totient is φ = 133405485988.

The previous prime is 133405485949. The next prime is 133405486007. The reversal of 133405485989 is 989584504331.

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., 126154963489 + 7250522500 = 355183^2 + 85150^2 .

It is a cyclic number.

It is not a de Polignac number, because 133405485989 - 2³⁶ = 64686009253 is a prime.

It is a super-2 number, since 2×133405485989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133405485949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66702742994 + 66702742995.

It is an arithmetic number, because the mean of its divisors is an integer number (66702742995).

Almost surely, 2^133405485989 is an apocalyptic number.

It is an amenable number.

133405485989 is a deficient number, since it is larger than the sum of its proper divisors (1).

133405485989 is an equidigital number, since it uses as much as digits as its factorization.

133405485989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18662400, while the sum is 59.

The spelling of 133405485989 in words is "one hundred thirty-three billion, four hundred five million, four hundred eighty-five thousand, nine hundred eighty-nine".