133040399 has 2 divisors, whose sum is σ = 133040400. Its totient is φ = 133040398.

The previous prime is 133040393. The next prime is 133040423. The reversal of 133040399 is 993040331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133040399 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133040393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66520199 + 66520200.

It is an arithmetic number, because the mean of its divisors is an integer number (66520200).

Almost surely, 2^133040399 is an apocalyptic number.

133040399 is a deficient number, since it is larger than the sum of its proper divisors (1).

133040399 is an equidigital number, since it uses as much as digits as its factorization.

133040399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 133040399 is about 11534.3139804672. The cubic root of 133040399 is about 510.4985500337.

The spelling of 133040399 in words is "one hundred thirty-three million, forty thousand, three hundred ninety-nine".