1081004385 has 8 divisors (see below), whose sum is σ = 1729607040. Its totient is φ = 576535664.

The previous prime is 1081004383. The next prime is 1081004437. The reversal of 1081004385 is 5834001801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1081004385 - 2¹ = 1081004383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1081004383) 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 7 ways as a sum of consecutive naturals, for example, 36033465 + ... + 36033494.

It is an arithmetic number, because the mean of its divisors is an integer number (216200880).

Almost surely, 2^1081004385 is an apocalyptic number.

1081004385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1081004385 is a deficient number, since it is larger than the sum of its proper divisors (648602655).

1081004385 is an equidigital number, since it uses as much as digits as its factorization.

1081004385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72066967.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1081004385 is about 32878.6311302645. The cubic root of 1081004385 is about 1026.3035202388.

The spelling of 1081004385 in words is "one billion, eighty-one million, four thousand, three hundred eighty-five".