135523077 has 4 divisors (see below), whose sum is σ = 180697440. Its totient is φ = 90348716.

The previous prime is 135523051. The next prime is 135523123. The reversal of 135523077 is 770325531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135523077 - 2¹⁸ = 135260933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135522077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22587177 + ... + 22587182.

It is an arithmetic number, because the mean of its divisors is an integer number (45174360).

Almost surely, 2^135523077 is an apocalyptic number.

It is an amenable number.

135523077 is a deficient number, since it is larger than the sum of its proper divisors (45174363).

135523077 is an equidigital number, since it uses as much as digits as its factorization.

135523077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45174362.

The product of its (nonzero) digits is 22050, while the sum is 33.

The square root of 135523077 is about 11641.4379266481. The cubic root of 135523077 is about 513.6544849989.

The spelling of 135523077 in words is "one hundred thirty-five million, five hundred twenty-three thousand, seventy-seven".