135580091 has 2 divisors, whose sum is σ = 135580092. Its totient is φ = 135580090.

The previous prime is 135580087. The next prime is 135580111. The reversal of 135580091 is 190085531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135580091 - 2² = 135580087 is a prime.

It is a super-2 number, since 2×135580091² = 36763922151136562, which contains 22 as substring.

It is equal to p_7676411 and since 135580091 and 7676411 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 (135585091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67790045 + 67790046.

It is an arithmetic number, because the mean of its divisors is an integer number (67790046).

Almost surely, 2^135580091 is an apocalyptic number.

135580091 is a deficient number, since it is larger than the sum of its proper divisors (1).

135580091 is an equidigital number, since it uses as much as digits as its factorization.

135580091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 135580091 is about 11643.8864216378. The cubic root of 135580091 is about 513.7265056753.

The spelling of 135580091 in words is "one hundred thirty-five million, five hundred eighty thousand, ninety-one".