135400503 has 8 divisors (see below), whose sum is σ = 206324608. Its totient is φ = 77371704.

The previous prime is 135400487. The next prime is 135400511. The reversal of 135400503 is 305004531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135400503 - 2⁴ = 135400487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6447643 = 135400503 / (1 + 3 + 5 + 4 + 0 + 0 + 5 + 0 + 3).

It is a self number, because there is not a number n which added to its sum of digits gives 135400503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135400513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3223801 + ... + 3223842.

It is an arithmetic number, because the mean of its divisors is an integer number (25790576).

Almost surely, 2^135400503 is an apocalyptic number.

135400503 is a deficient number, since it is larger than the sum of its proper divisors (70924105).

135400503 is an equidigital number, since it uses as much as digits as its factorization.

135400503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6447653.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 135400503 is about 11636.1721798880. The cubic root of 135400503 is about 513.4995798285.

The spelling of 135400503 in words is "one hundred thirty-five million, four hundred thousand, five hundred three".