1081583081 has 8 divisors (see below), whose sum is σ = 1087124520. Its totient is φ = 1076055552.

The previous prime is 1081583053. The next prime is 1081583089. The reversal of 1081583081 is 1803851801.

It can be written as a sum of positive squares in 4 ways, for example, as 9610000 + 1071973081 = 3100^2 + 32741^2 .

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 1081583081 - 2¹⁸ = 1081320937 is a prime.

It is a super-2 number, since 2×1081583081² = 2339643922210905122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081583089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175061 + ... + 181133.

It is an arithmetic number, because the mean of its divisors is an integer number (135890565).

Almost surely, 2^1081583081 is an apocalyptic number.

It is an amenable number.

1081583081 is a deficient number, since it is larger than the sum of its proper divisors (5541439).

1081583081 is an equidigital number, since it uses as much as digits as its factorization.

1081583081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955.

The product of its (nonzero) digits is 7680, while the sum is 35.

The square root of 1081583081 is about 32887.4304408234. The cubic root of 1081583081 is about 1026.4866251983.

The spelling of 1081583081 in words is "one billion, eighty-one million, five hundred eighty-three thousand, eighty-one".