133681151 has 2 divisors, whose sum is σ = 133681152. Its totient is φ = 133681150.

The previous prime is 133681123. The next prime is 133681153. The reversal of 133681151 is 151186331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133681151 - 2⁶ = 133681087 is a prime.

Together with 133681153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133681153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66840575 + 66840576.

It is an arithmetic number, because the mean of its divisors is an integer number (66840576).

Almost surely, 2^133681151 is an apocalyptic number.

133681151 is a deficient number, since it is larger than the sum of its proper divisors (1).

133681151 is an equidigital number, since it uses as much as digits as its factorization.

133681151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 133681151 is about 11562.0565212249. The cubic root of 133681151 is about 511.3167958111.

The spelling of 133681151 in words is "one hundred thirty-three million, six hundred eighty-one thousand, one hundred fifty-one".