133656727 has 2 divisors, whose sum is σ = 133656728. Its totient is φ = 133656726.

The previous prime is 133656709. The next prime is 133656751. The reversal of 133656727 is 727656331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133656727 - 2²³ = 125268119 is a prime.

It is equal to p_7573648 and since 133656727 and 7573648 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133656727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133656707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66828363 + 66828364.

It is an arithmetic number, because the mean of its divisors is an integer number (66828364).

Almost surely, 2^133656727 is an apocalyptic number.

133656727 is a deficient number, since it is larger than the sum of its proper divisors (1).

133656727 is an equidigital number, since it uses as much as digits as its factorization.

133656727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 40.

The square root of 133656727 is about 11561.0002594931. Note that the first 3 decimals coincide. The cubic root of 133656727 is about 511.2856541431.

The spelling of 133656727 in words is "one hundred thirty-three million, six hundred fifty-six thousand, seven hundred twenty-seven".