133122405 has 16 divisors (see below), whose sum is σ = 229380480. Its totient is φ = 65537088.

The previous prime is 133122397. The next prime is 133122433. The reversal of 133122405 is 504221331.

It is not a de Polignac number, because 133122405 - 2³ = 133122397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341145 + ... + 341534.

It is an arithmetic number, because the mean of its divisors is an integer number (14336280).

Almost surely, 2^133122405 is an apocalyptic number.

133122405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133122405 is a deficient number, since it is larger than the sum of its proper divisors (96258075).

133122405 is a wasteful number, since it uses less digits than its factorization.

133122405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682700.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 133122405 is about 11537.8683039806. The cubic root of 133122405 is about 510.6034187947.

Adding to 133122405 its reverse (504221331), we get a palindrome (637343736).

The spelling of 133122405 in words is "one hundred thirty-three million, one hundred twenty-two thousand, four hundred five".