135922691 has 2 divisors, whose sum is σ = 135922692. Its totient is φ = 135922690.

The previous prime is 135922651. The next prime is 135922697. The reversal of 135922691 is 196229531.

It is a strong prime.

It is an emirp because it is prime and its reverse (196229531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135922691 - 2²⁶ = 68813827 is a prime.

It is a Chen prime.

It is equal to p_7694624 and since 135922691 and 7694624 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (135922697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67961345 + 67961346.

It is an arithmetic number, because the mean of its divisors is an integer number (67961346).

Almost surely, 2^135922691 is an apocalyptic number.

135922691 is a deficient number, since it is larger than the sum of its proper divisors (1).

135922691 is an equidigital number, since it uses as much as digits as its factorization.

135922691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 135922691 is about 11658.5887224827. The cubic root of 135922691 is about 514.1588569128.

The spelling of 135922691 in words is "one hundred thirty-five million, nine hundred twenty-two thousand, six hundred ninety-one".