1082520139 has 16 divisors (see below), whose sum is σ = 1162271232. Its totient is φ = 1005922368.

The previous prime is 1082520133. The next prime is 1082520143. The reversal of 1082520139 is 9310252801.

It is a cyclic number.

It is not a de Polignac number, because 1082520139 - 2⁵ = 1082520107 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 1082520139.

It is not an unprimeable number, because it can be changed into a prime (1082520133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107682 + ... + 117304.

It is an arithmetic number, because the mean of its divisors is an integer number (72641952).

Almost surely, 2^1082520139 is an apocalyptic number.

1082520139 is a deficient number, since it is larger than the sum of its proper divisors (79751093).

1082520139 is an equidigital number, since it uses as much as digits as its factorization.

1082520139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9786.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1082520139 is about 32901.6738024071. The cubic root of 1082520139 is about 1026.7829808742.

The spelling of 1082520139 in words is "one billion, eighty-two million, five hundred twenty thousand, one hundred thirty-nine".