133316811 has 12 divisors (see below), whose sum is σ = 192967320. Its totient is φ = 88693920.

The previous prime is 133316791. The next prime is 133316831. The reversal of 133316811 is 118613331.

It is an interprime number because it is at equal distance from previous prime (133316791) and next prime (133316831).

It is not a de Polignac number, because 133316811 - 2⁵ = 133316779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133316831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10666 + ... + 19503.

It is an arithmetic number, because the mean of its divisors is an integer number (16080610).

Almost surely, 2^133316811 is an apocalyptic number.

133316811 is a deficient number, since it is larger than the sum of its proper divisors (59650509).

133316811 is a wasteful number, since it uses less digits than its factorization.

133316811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30666 (or 30663 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 133316811 is about 11546.2899236075. The cubic root of 133316811 is about 510.8518520242.

The spelling of 133316811 in words is "one hundred thirty-three million, three hundred sixteen thousand, eight hundred eleven".