133405011 has 6 divisors (see below), whose sum is σ = 192696140. Its totient is φ = 88936668.

The previous prime is 133405007. The next prime is 133405033. The reversal of 133405011 is 110504331.

It is not a de Polignac number, because 133405011 - 2² = 133405007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133405211) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 7411381 + ... + 7411398.

Almost surely, 2^133405011 is an apocalyptic number.

133405011 is a deficient number, since it is larger than the sum of its proper divisors (59291129).

133405011 is a wasteful number, since it uses less digits than its factorization.

133405011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14822785 (or 14822782 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 133405011 is about 11550.1087007872. The cubic root of 133405011 is about 510.9644839830.

Adding to 133405011 its reverse (110504331), we get a palindrome (243909342).

The spelling of 133405011 in words is "one hundred thirty-three million, four hundred five thousand, eleven".