133061189 has 2 divisors, whose sum is σ = 133061190. Its totient is φ = 133061188.

The previous prime is 133061179. The next prime is 133061231. The reversal of 133061189 is 981160331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131217025 + 1844164 = 11455^2 + 1358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133061189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133061179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66530594 + 66530595.

It is an arithmetic number, because the mean of its divisors is an integer number (66530595).

Almost surely, 2^133061189 is an apocalyptic number.

It is an amenable number.

133061189 is a deficient number, since it is larger than the sum of its proper divisors (1).

133061189 is an equidigital number, since it uses as much as digits as its factorization.

133061189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 133061189 is about 11535.2151692112. The cubic root of 133061189 is about 510.5251402328.

The spelling of 133061189 in words is "one hundred thirty-three million, sixty-one thousand, one hundred eighty-nine".