1084139403 has 4 divisors (see below), whose sum is σ = 1445519208. Its totient is φ = 722759600.

The previous prime is 1084139401. The next prime is 1084139417. The reversal of 1084139403 is 3049314801.

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 1084139403 - 2¹ = 1084139401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1084139401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180689898 + ... + 180689903.

It is an arithmetic number, because the mean of its divisors is an integer number (361379802).

Almost surely, 2^1084139403 is an apocalyptic number.

1084139403 is a deficient number, since it is larger than the sum of its proper divisors (361379805).

1084139403 is an equidigital number, since it uses as much as digits as its factorization.

1084139403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361379804.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1084139403 is about 32926.2722305456. The cubic root of 1084139403 is about 1027.2946894146.

The spelling of 1084139403 in words is "one billion, eighty-four million, one hundred thirty-nine thousand, four hundred three".