1085920481 has 4 divisors (see below), whose sum is σ = 1092197652. Its totient is φ = 1079643312.

The previous prime is 1085920463. The next prime is 1085920501. The reversal of 1085920481 is 1840295801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 923612881 + 162307600 = 30391^2 + 12740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085920481 is a prime.

It is a super-2 number, since 2×1085920481² = 2358446582110542722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1085920411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3138326 + ... + 3138671.

It is an arithmetic number, because the mean of its divisors is an integer number (273049413).

Almost surely, 2^1085920481 is an apocalyptic number.

It is an amenable number.

1085920481 is a deficient number, since it is larger than the sum of its proper divisors (6277171).

1085920481 is an equidigital number, since it uses as much as digits as its factorization.

1085920481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277170.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 1085920481 is about 32953.3075881618. The cubic root of 1085920481 is about 1027.8569451877.

The spelling of 1085920481 in words is "one billion, eighty-five million, nine hundred twenty thousand, four hundred eighty-one".