133136371 has 4 divisors (see below), whose sum is σ = 135648432. Its totient is φ = 130624312.

The previous prime is 133136369. The next prime is 133136387. The reversal of 133136371 is 173631331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133136371 - 2¹ = 133136369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133131371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255951 + ... + 1256056.

It is an arithmetic number, because the mean of its divisors is an integer number (33912108).

Almost surely, 2^133136371 is an apocalyptic number.

133136371 is a deficient number, since it is larger than the sum of its proper divisors (2512061).

133136371 is an equidigital number, since it uses as much as digits as its factorization.

133136371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512060.

The product of its digits is 3402, while the sum is 28.

The square root of 133136371 is about 11538.4735125579. The cubic root of 133136371 is about 510.6212741361.

The spelling of 133136371 in words is "one hundred thirty-three million, one hundred thirty-six thousand, three hundred seventy-one".