133121299 has 2 divisors, whose sum is σ = 133121300. Its totient is φ = 133121298.

The previous prime is 133121291. The next prime is 133121311. The reversal of 133121299 is 992121331.

It is a weak prime.

It is an emirp because it is prime and its reverse (992121331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133121299 - 2³ = 133121291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133121299.

It is not a weakly prime, because it can be changed into another prime (133121291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66560649 + 66560650.

It is an arithmetic number, because the mean of its divisors is an integer number (66560650).

Almost surely, 2^133121299 is an apocalyptic number.

133121299 is a deficient number, since it is larger than the sum of its proper divisors (1).

133121299 is an equidigital number, since it uses as much as digits as its factorization.

133121299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 31.

The square root of 133121299 is about 11537.8203747502. The cubic root of 133121299 is about 510.6020047353.

The spelling of 133121299 in words is "one hundred thirty-three million, one hundred twenty-one thousand, two hundred ninety-nine".