1081538033 has 4 divisors (see below), whose sum is σ = 1081624128. Its totient is φ = 1081451940.

The previous prime is 1081537999. The next prime is 1081538041. The reversal of 1081538033 is 3308351801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081538033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081538063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20141 + ... + 50682.

It is an arithmetic number, because the mean of its divisors is an integer number (270406032).

Almost surely, 2^1081538033 is an apocalyptic number.

It is an amenable number.

1081538033 is a deficient number, since it is larger than the sum of its proper divisors (86095).

1081538033 is an equidigital number, since it uses as much as digits as its factorization.

1081538033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86094.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1081538033 is about 32886.7455519697. The cubic root of 1081538033 is about 1026.4723739240.

Adding to 1081538033 its reverse (3308351801), we get a palindrome (4389889834).

The spelling of 1081538033 in words is "one billion, eighty-one million, five hundred thirty-eight thousand, thirty-three".