135497555 has 4 divisors (see below), whose sum is σ = 162597072. Its totient is φ = 108398040.

The previous prime is 135497543. The next prime is 135497611. The reversal of 135497555 is 555794531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555794531 = 6367 ⋅87293.

It is not a de Polignac number, because 135497555 - 2⁴ = 135497539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13549751 + ... + 13549760.

It is an arithmetic number, because the mean of its divisors is an integer number (40649268).

Almost surely, 2^135497555 is an apocalyptic number.

135497555 is a deficient number, since it is larger than the sum of its proper divisors (27099517).

135497555 is an equidigital number, since it uses as much as digits as its factorization.

135497555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27099516.

The product of its digits is 472500, while the sum is 44.

The square root of 135497555 is about 11640.3417046064. The cubic root of 135497555 is about 513.6222387988.

The spelling of 135497555 in words is "one hundred thirty-five million, four hundred ninety-seven thousand, five hundred fifty-five".