133450573 has 2 divisors, whose sum is σ = 133450574. Its totient is φ = 133450572.

The previous prime is 133450549. The next prime is 133450579. The reversal of 133450573 is 375054331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108430569 + 25020004 = 10413^2 + 5002^2 .

It is an emirp because it is prime and its reverse (375054331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133450573 - 2²¹ = 131353421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133450579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66725286 + 66725287.

It is an arithmetic number, because the mean of its divisors is an integer number (66725287).

Almost surely, 2^133450573 is an apocalyptic number.

It is an amenable number.

133450573 is a deficient number, since it is larger than the sum of its proper divisors (1).

133450573 is an equidigital number, since it uses as much as digits as its factorization.

133450573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 133450573 is about 11552.0808947999. The cubic root of 133450573 is about 511.0226475002.

The spelling of 133450573 in words is "one hundred thirty-three million, four hundred fifty thousand, five hundred seventy-three".