1220053544 has 16 divisors (see below), whose sum is σ = 2293199700. Its totient is φ = 608533632.

The previous prime is 1220053537. The next prime is 1220053559. The reversal of 1220053544 is 4453500221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1104232900 + 115820644 = 33230^2 + 10762^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183167 + ... + 189710.

Almost surely, 2^1220053544 is an apocalyptic number.

It is an amenable number.

1220053544 is a deficient number, since it is larger than the sum of its proper divisors (1073146156).

1220053544 is a wasteful number, since it uses less digits than its factorization.

1220053544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373292 (or 373288 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1220053544 is about 34929.2648648665. The cubic root of 1220053544 is about 1068.5453619846.

Adding to 1220053544 its reverse (4453500221), we get a palindrome (5673553765).

The spelling of 1220053544 in words is "one billion, two hundred twenty million, fifty-three thousand, five hundred forty-four".