1081936439 has 2 divisors, whose sum is σ = 1081936440. Its totient is φ = 1081936438.

The previous prime is 1081936409. The next prime is 1081936469. The reversal of 1081936439 is 9346391801.

It is a balanced prime because it is at equal distance from previous prime (1081936409) and next prime (1081936469).

It is a cyclic number.

It is not a de Polignac number, because 1081936439 - 2⁸ = 1081936183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1081936439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081936409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540968219 + 540968220.

It is an arithmetic number, because the mean of its divisors is an integer number (540968220).

Almost surely, 2^1081936439 is an apocalyptic number.

1081936439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081936439 is an equidigital number, since it uses as much as digits as its factorization.

1081936439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 1081936439 is about 32892.8022369636. The cubic root of 1081936439 is about 1026.5983989412.

The spelling of 1081936439 in words is "one billion, eighty-one million, nine hundred thirty-six thousand, four hundred thirty-nine".