135254491 has 4 divisors (see below), whose sum is σ = 137547000. Its totient is φ = 132961984.

The previous prime is 135254489. The next prime is 135254551. The reversal of 135254491 is 194452531.

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

It is a cyclic number.

It is not a de Polignac number, because 135254491 - 2¹ = 135254489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135254591) 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, 1146166 + ... + 1146283.

It is an arithmetic number, because the mean of its divisors is an integer number (34386750).

Almost surely, 2^135254491 is an apocalyptic number.

135254491 is a deficient number, since it is larger than the sum of its proper divisors (2292509).

135254491 is an equidigital number, since it uses as much as digits as its factorization.

135254491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292508.

The product of its digits is 21600, while the sum is 34.

The square root of 135254491 is about 11629.8964311811. The cubic root of 135254491 is about 513.3149323908.

The spelling of 135254491 in words is "one hundred thirty-five million, two hundred fifty-four thousand, four hundred ninety-one".