133407073 has 2 divisors, whose sum is σ = 133407074. Its totient is φ = 133407072.

The previous prime is 133407059. The next prime is 133407077. The reversal of 133407073 is 370704331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133102369 + 304704 = 11537^2 + 552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133407073 is a prime.

It is not a weakly prime, because it can be changed into another prime (133407077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66703536 + 66703537.

It is an arithmetic number, because the mean of its divisors is an integer number (66703537).

Almost surely, 2^133407073 is an apocalyptic number.

It is an amenable number.

133407073 is a deficient number, since it is larger than the sum of its proper divisors (1).

133407073 is an equidigital number, since it uses as much as digits as its factorization.

133407073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 133407073 is about 11550.1979636714. The cubic root of 133407073 is about 510.9671165761.

The spelling of 133407073 in words is "one hundred thirty-three million, four hundred seven thousand, seventy-three".