1139650403 has 6 divisors (see below), whose sum is σ = 1210632396. Its totient is φ = 1072611872.

The previous prime is 1139650397. The next prime is 1139650441. The reversal of 1139650403 is 3040569311.

It is not a de Polignac number, because 1139650403 - 2⁴ = 1139650387 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 1139650403.

It is not an unprimeable number, because it can be changed into a prime (1139650493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1971425 + ... + 1972002.

It is an arithmetic number, because the mean of its divisors is an integer number (201772066).

Almost surely, 2^1139650403 is an apocalyptic number.

1139650403 is a deficient number, since it is larger than the sum of its proper divisors (70981993).

1139650403 is an equidigital number, since it uses as much as digits as its factorization.

1139650403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943461 (or 3943444 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 1139650403 is about 33758.7085505355. The cubic root of 1139650403 is about 1044.5371309975.

The spelling of 1139650403 in words is "one billion, one hundred thirty-nine million, six hundred fifty thousand, four hundred three".