133450549 has 2 divisors, whose sum is σ = 133450550. Its totient is φ = 133450548.

The previous prime is 133450529. The next prime is 133450573. The reversal of 133450549 is 945054331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129549924 + 3900625 = 11382^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 133450549 - 2¹³ = 133442357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133450519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66725274 + 66725275.

It is an arithmetic number, because the mean of its divisors is an integer number (66725275).

Almost surely, 2^133450549 is an apocalyptic number.

It is an amenable number.

133450549 is a deficient number, since it is larger than the sum of its proper divisors (1).

133450549 is an equidigital number, since it uses as much as digits as its factorization.

133450549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 133450549 is about 11552.0798560259. The cubic root of 133450549 is about 511.0226168658.

The spelling of 133450549 in words is "one hundred thirty-three million, four hundred fifty thousand, five hundred forty-nine".