1040135403 has 8 divisors (see below), whose sum is σ = 1407546688. Its totient is φ = 683073864.

The previous prime is 1040135401. The next prime is 1040135423. The reversal of 1040135403 is 3045310401.

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

It is not a de Polignac number, because 1040135403 - 2¹ = 1040135401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1040135403.

It is not an unprimeable number, because it can be changed into a prime (1040135401) 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, 2587201 + ... + 2587602.

It is an arithmetic number, because the mean of its divisors is an integer number (175943336).

Almost surely, 2^1040135403 is an apocalyptic number.

1040135403 is a deficient number, since it is larger than the sum of its proper divisors (367411285).

1040135403 is an equidigital number, since it uses as much as digits as its factorization.

1040135403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174873.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1040135403 is about 32251.1302592638. The cubic root of 1040135403 is about 1013.2033714066.

Adding to 1040135403 its reverse (3045310401), we get a palindrome (4085445804).

The spelling of 1040135403 in words is "one billion, forty million, one hundred thirty-five thousand, four hundred three".