1200148553 has 2 divisors, whose sum is σ = 1200148554. Its totient is φ = 1200148552.

The previous prime is 1200148549. The next prime is 1200148583. The reversal of 1200148553 is 3558410021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1192459024 + 7689529 = 34532^2 + 2773^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200148553 - 2² = 1200148549 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200148513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600074276 + 600074277.

It is an arithmetic number, because the mean of its divisors is an integer number (600074277).

Almost surely, 2^1200148553 is an apocalyptic number.

It is an amenable number.

1200148553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200148553 is an equidigital number, since it uses as much as digits as its factorization.

1200148553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1200148553 is about 34643.1602628859. The cubic root of 1200148553 is about 1062.7024176839.

Adding to 1200148553 its reverse (3558410021), we get a palindrome (4758558574).

The spelling of 1200148553 in words is "one billion, two hundred million, one hundred forty-eight thousand, five hundred fifty-three".