1200064553 has 2 divisors, whose sum is σ = 1200064554. Its totient is φ = 1200064552.

The previous prime is 1200064501. The next prime is 1200064559. The reversal of 1200064553 is 3554600021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 602604304 + 597460249 = 24548^2 + 24443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200064553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200064559) by changing a digit.

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 as a sum of consecutive naturals, namely, 600032276 + 600032277.

It is an arithmetic number, because the mean of its divisors is an integer number (600032277).

Almost surely, 2^1200064553 is an apocalyptic number.

It is an amenable number.

1200064553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200064553 is an equidigital number, since it uses as much as digits as its factorization.

1200064553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1200064553 is about 34641.9478811455. The cubic root of 1200064553 is about 1062.6776237850.

Adding to 1200064553 its reverse (3554600021), we get a palindrome (4754664574).

The spelling of 1200064553 in words is "one billion, two hundred million, sixty-four thousand, five hundred fifty-three".