1061440144 has 20 divisors (see below), whose sum is σ = 2106701100. Its totient is φ = 517775360.

The previous prime is 1061440139. The next prime is 1061440229. The reversal of 1061440144 is 4410441601.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25887744 + 1035552400 = 5088^2 + 32180^2 .

It is a super-2 number, since 2×1061440144² = 2253310358589481472, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 808369 + ... + 809680.

It is an arithmetic number, because the mean of its divisors is an integer number (105335055).

Almost surely, 2^1061440144 is an apocalyptic number.

It is an amenable number.

1061440144 is a deficient number, since it is larger than the sum of its proper divisors (1045260956).

1061440144 is a wasteful number, since it uses less digits than its factorization.

1061440144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618098 (or 1618092 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1061440144 is about 32579.7505208373. The cubic root of 1061440144 is about 1020.0743710991.

Adding to 1061440144 its reverse (4410441601), we get a palindrome (5471881745).

The spelling of 1061440144 in words is "one billion, sixty-one million, four hundred forty thousand, one hundred forty-four".