1005544141 has 6 divisors (see below), whose sum is σ = 1169714670. Its totient is φ = 861894936.

The previous prime is 1005544093. The next prime is 1005544181. The reversal of 1005544141 is 1414455001.

It can be written as a sum of positive squares in only one way, i.e., 865595241 + 139948900 = 29421^2 + 11830^2 .

It is not a de Polignac number, because 1005544141 - 2¹⁷ = 1005413069 is a prime.

It is a super-2 number, since 2×1005544141² = 2022238038998855762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005544181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10260606 + ... + 10260703.

It is an arithmetic number, because the mean of its divisors is an integer number (194952445).

Almost surely, 2^1005544141 is an apocalyptic number.

It is an amenable number.

1005544141 is a deficient number, since it is larger than the sum of its proper divisors (164170529).

1005544141 is an equidigital number, since it uses as much as digits as its factorization.

1005544141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20521323 (or 20521316 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1005544141 is about 31710.3160028405. The cubic root of 1005544141 is about 1001.8446422029.

Adding to 1005544141 its reverse (1414455001), we get a palindrome (2419999142).

The spelling of 1005544141 in words is "one billion, five million, five hundred forty-four thousand, one hundred forty-one".