135437459 has 4 divisors (see below), whose sum is σ = 135587040. Its totient is φ = 135287880.

The previous prime is 135437431. The next prime is 135437483. The reversal of 135437459 is 954734531.

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-135437459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135437429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73424 + ... + 75245.

It is an arithmetic number, because the mean of its divisors is an integer number (33896760).

Almost surely, 2^135437459 is an apocalyptic number.

135437459 is a deficient number, since it is larger than the sum of its proper divisors (149581).

135437459 is an equidigital number, since it uses as much as digits as its factorization.

135437459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149580.

The product of its digits is 226800, while the sum is 41.

The square root of 135437459 is about 11637.7600508002. The cubic root of 135437459 is about 513.5462935010.

The spelling of 135437459 in words is "one hundred thirty-five million, four hundred thirty-seven thousand, four hundred fifty-nine".