135856077 has 12 divisors (see below), whose sum is σ = 210715776. Its totient is φ = 77631960.

The previous prime is 135856037. The next prime is 135856079. The reversal of 135856077 is 770658531.

It is not a de Polignac number, because 135856077 - 2⁷ = 135855949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135856079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 461949 + ... + 462242.

It is an arithmetic number, because the mean of its divisors is an integer number (17559648).

Almost surely, 2^135856077 is an apocalyptic number.

It is an amenable number.

135856077 is a deficient number, since it is larger than the sum of its proper divisors (74859699).

135856077 is an equidigital number, since it uses as much as digits as its factorization.

135856077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924208 (or 924201 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 135856077 is about 11655.7315085755. The cubic root of 135856077 is about 514.0748489262.

The spelling of 135856077 in words is "one hundred thirty-five million, eight hundred fifty-six thousand, seventy-seven".