135052403 has 4 divisors (see below), whose sum is σ = 142996680. Its totient is φ = 127108128.

The previous prime is 135052381. The next prime is 135052433. The reversal of 135052403 is 304250531.

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 135052403 - 2⁶ = 135052339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135052433) 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, 3972113 + ... + 3972146.

It is an arithmetic number, because the mean of its divisors is an integer number (35749170).

Almost surely, 2^135052403 is an apocalyptic number.

135052403 is a deficient number, since it is larger than the sum of its proper divisors (7944277).

135052403 is an equidigital number, since it uses as much as digits as its factorization.

135052403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944276.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 135052403 is about 11621.2048858972. The cubic root of 135052403 is about 513.0591516161.

The spelling of 135052403 in words is "one hundred thirty-five million, fifty-two thousand, four hundred three".