135405254803 has 24 divisors (see below), whose sum is σ = 170644434912. Its totient is φ = 106492224384.

The previous prime is 135405254801. The next prime is 135405254807. The reversal of 135405254803 is 308452504531.

It is not a de Polignac number, because 135405254803 - 2¹ = 135405254801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135405254801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 530050 + ... + 742807.

It is an arithmetic number, because the mean of its divisors is an integer number (7110184788).

Almost surely, 2^135405254803 is an apocalyptic number.

135405254803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

135405254803 is a deficient number, since it is larger than the sum of its proper divisors (35239180109).

135405254803 is a wasteful number, since it uses less digits than its factorization.

135405254803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273051 (or 1273044 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 135405254803 in words is "one hundred thirty-five billion, four hundred five million, two hundred fifty-four thousand, eight hundred three".