1083630391 has 2 divisors, whose sum is σ = 1083630392. Its totient is φ = 1083630390.

The previous prime is 1083630377. The next prime is 1083630419. The reversal of 1083630391 is 1930363801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1083630391 - 2¹⁹ = 1083106103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1083630311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541815195 + 541815196.

It is an arithmetic number, because the mean of its divisors is an integer number (541815196).

Almost surely, 2^1083630391 is an apocalyptic number.

1083630391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1083630391 is an equidigital number, since it uses as much as digits as its factorization.

1083630391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 1083630391 is about 32918.5417508127. The cubic root of 1083630391 is about 1027.1338899269.

The spelling of 1083630391 in words is "one billion, eighty-three million, six hundred thirty thousand, three hundred ninety-one".