1200133453 has 2 divisors, whose sum is σ = 1200133454. Its totient is φ = 1200133452.

The previous prime is 1200133439. The next prime is 1200133469. The reversal of 1200133453 is 3543310021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1180747044 + 19386409 = 34362^2 + 4403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200133453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200133433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600066726 + 600066727.

It is an arithmetic number, because the mean of its divisors is an integer number (600066727).

Almost surely, 2^1200133453 is an apocalyptic number.

It is an amenable number.

1200133453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200133453 is an equidigital number, since it uses as much as digits as its factorization.

1200133453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1200133453 is about 34642.9423259630. The cubic root of 1200133453 is about 1062.6979607707.

Adding to 1200133453 its reverse (3543310021), we get a palindrome (4743443474).

It can be divided in two parts, 12001 and 33453, that added together give a palindrome (45454).

The spelling of 1200133453 in words is "one billion, two hundred million, one hundred thirty-three thousand, four hundred fifty-three".