135490771 has 4 divisors (see below), whose sum is σ = 145913152. Its totient is φ = 125068392.

The previous prime is 135490759. The next prime is 135490787. The reversal of 135490771 is 177094531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135490771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135490771.

It is not an unprimeable number, because it can be changed into a prime (135490711) 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 in 3 ways as a sum of consecutive naturals, for example, 5211171 + ... + 5211196.

It is an arithmetic number, because the mean of its divisors is an integer number (36478288).

Almost surely, 2^135490771 is an apocalyptic number.

135490771 is a deficient number, since it is larger than the sum of its proper divisors (10422381).

135490771 is a wasteful number, since it uses less digits than its factorization.

135490771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422380.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 135490771 is about 11640.0503005786. The cubic root of 135490771 is about 513.6136667587.

The spelling of 135490771 in words is "one hundred thirty-five million, four hundred ninety thousand, seven hundred seventy-one".