133404373 has 2 divisors, whose sum is σ = 133404374. Its totient is φ = 133404372.

The previous prime is 133404343. The next prime is 133404407. The reversal of 133404373 is 373404331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117983044 + 15421329 = 10862^2 + 3927^2 .

It is a cyclic number.

It is not a de Polignac number, because 133404373 - 2¹³ = 133396181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133404343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66702186 + 66702187.

It is an arithmetic number, because the mean of its divisors is an integer number (66702187).

Almost surely, 2^133404373 is an apocalyptic number.

It is an amenable number.

133404373 is a deficient number, since it is larger than the sum of its proper divisors (1).

133404373 is an equidigital number, since it uses as much as digits as its factorization.

133404373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 133404373 is about 11550.0810819665. The cubic root of 133404373 is about 510.9636694312.

The spelling of 133404373 in words is "one hundred thirty-three million, four hundred four thousand, three hundred seventy-three".