135597886 has 4 divisors (see below), whose sum is σ = 203396832. Its totient is φ = 67798942.

The previous prime is 135597829. The next prime is 135597887. The reversal of 135597886 is 688795531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 688795531 = 41 ⋅16799891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135597887) 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, 33899470 + ... + 33899473.

It is an arithmetic number, because the mean of its divisors is an integer number (50849208).

Almost surely, 2^135597886 is an apocalyptic number.

135597886 is a deficient number, since it is larger than the sum of its proper divisors (67798946).

135597886 is an equidigital number, since it uses as much as digits as its factorization.

135597886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67798945.

The product of its digits is 1814400, while the sum is 52.

The square root of 135597886 is about 11644.6505314672. The cubic root of 135597886 is about 513.7489803695.

The spelling of 135597886 in words is "one hundred thirty-five million, five hundred ninety-seven thousand, eight hundred eighty-six".