133211399 has 2 divisors, whose sum is σ = 133211400. Its totient is φ = 133211398.

The previous prime is 133211363. The next prime is 133211417. The reversal of 133211399 is 993112331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133211399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133211329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66605699 + 66605700.

It is an arithmetic number, because the mean of its divisors is an integer number (66605700).

Almost surely, 2^133211399 is an apocalyptic number.

133211399 is a deficient number, since it is larger than the sum of its proper divisors (1).

133211399 is an equidigital number, since it uses as much as digits as its factorization.

133211399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4374, while the sum is 32.

The square root of 133211399 is about 11541.7242645976. The cubic root of 133211399 is about 510.7171750491.

The spelling of 133211399 in words is "one hundred thirty-three million, two hundred eleven thousand, three hundred ninety-nine".