133060691 has 2 divisors, whose sum is σ = 133060692. Its totient is φ = 133060690.

The previous prime is 133060673. The next prime is 133060693. The reversal of 133060691 is 196060331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133060691 is a prime.

Together with 133060693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133060693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66530345 + 66530346.

It is an arithmetic number, because the mean of its divisors is an integer number (66530346).

Almost surely, 2^133060691 is an apocalyptic number.

133060691 is a deficient number, since it is larger than the sum of its proper divisors (1).

133060691 is an equidigital number, since it uses as much as digits as its factorization.

133060691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 133060691 is about 11535.1935831177. The cubic root of 133060691 is about 510.5245033282.

The spelling of 133060691 in words is "one hundred thirty-three million, sixty thousand, six hundred ninety-one".