133613711 has 16 divisors (see below), whose sum is σ = 170650368. Its totient is φ = 101572800.

The previous prime is 133613699. The next prime is 133613713. The reversal of 133613711 is 117316331.

It is not a de Polignac number, because 133613711 - 2¹⁴ = 133597327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133613713) 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 15 ways as a sum of consecutive naturals, for example, 18005 + ... + 24318.

It is an arithmetic number, because the mean of its divisors is an integer number (10665648).

Almost surely, 2^133613711 is an apocalyptic number.

133613711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133613711 is a deficient number, since it is larger than the sum of its proper divisors (37036657).

133613711 is a wasteful number, since it uses less digits than its factorization.

133613711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42382.

The product of its digits is 1134, while the sum is 26.

The square root of 133613711 is about 11559.1397171243. The cubic root of 133613711 is about 511.2307976360.

The spelling of 133613711 in words is "one hundred thirty-three million, six hundred thirteen thousand, seven hundred eleven".