133459849 has 2 divisors, whose sum is σ = 133459850. Its totient is φ = 133459848.

The previous prime is 133459847. The next prime is 133459873. The reversal of 133459849 is 948954331.

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., 109056249 + 24403600 = 10443^2 + 4940^2 .

It is a cyclic number.

It is not a de Polignac number, because 133459849 - 2¹ = 133459847 is a prime.

Together with 133459847, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 133459799 and 133459808.

It is not a weakly prime, because it can be changed into another prime (133459847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66729924 + 66729925.

It is an arithmetic number, because the mean of its divisors is an integer number (66729925).

Almost surely, 2^133459849 is an apocalyptic number.

It is an amenable number.

133459849 is a deficient number, since it is larger than the sum of its proper divisors (1).

133459849 is an equidigital number, since it uses as much as digits as its factorization.

133459849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 46.

The square root of 133459849 is about 11552.4823739316. The cubic root of 133459849 is about 511.0344874300.

The spelling of 133459849 in words is "one hundred thirty-three million, four hundred fifty-nine thousand, eight hundred forty-nine".