135124503 has 4 divisors (see below), whose sum is σ = 180166008. Its totient is φ = 90083000.

The previous prime is 135124501. The next prime is 135124537. The reversal of 135124503 is 305421531.

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 135124503 - 2¹ = 135124501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135124501) 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, 22520748 + ... + 22520753.

It is an arithmetic number, because the mean of its divisors is an integer number (45041502).

Almost surely, 2^135124503 is an apocalyptic number.

135124503 is a deficient number, since it is larger than the sum of its proper divisors (45041505).

135124503 is an equidigital number, since it uses as much as digits as its factorization.

135124503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45041504.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 135124503 is about 11624.3065599631. The cubic root of 135124503 is about 513.1504371297.

The spelling of 135124503 in words is "one hundred thirty-five million, one hundred twenty-four thousand, five hundred three".