133200181 has 2 divisors, whose sum is σ = 133200182. Its totient is φ = 133200180.

The previous prime is 133200173. The next prime is 133200187. The reversal of 133200181 is 181002331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69056100 + 64144081 = 8310^2 + 8009^2 .

It is a cyclic number.

It is not a de Polignac number, because 133200181 - 2³ = 133200173 is a prime.

It is a super-2 number, since 2×133200181² = 35484576436865522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133200187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66600090 + 66600091.

It is an arithmetic number, because the mean of its divisors is an integer number (66600091).

Almost surely, 2^133200181 is an apocalyptic number.

It is an amenable number.

133200181 is a deficient number, since it is larger than the sum of its proper divisors (1).

133200181 is an equidigital number, since it uses as much as digits as its factorization.

133200181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 133200181 is about 11541.2382784518. The cubic root of 133200181 is about 510.7028384730.

The spelling of 133200181 in words is "one hundred thirty-three million, two hundred thousand, one hundred eighty-one".