1200134147 has 2 divisors, whose sum is σ = 1200134148. Its totient is φ = 1200134146.

The previous prime is 1200134141. The next prime is 1200134189. The reversal of 1200134147 is 7414310021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200134147 - 2²⁰ = 1199085571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200134141) by changing a digit.

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 as a sum of consecutive naturals, namely, 600067073 + 600067074.

It is an arithmetic number, because the mean of its divisors is an integer number (600067074).

Almost surely, 2^1200134147 is an apocalyptic number.

1200134147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200134147 is an equidigital number, since it uses as much as digits as its factorization.

1200134147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1200134147 is about 34642.9523424318. The cubic root of 1200134147 is about 1062.6981656125.

Adding to 1200134147 its reverse (7414310021), we get a palindrome (8614444168).

The spelling of 1200134147 in words is "one billion, two hundred million, one hundred thirty-four thousand, one hundred forty-seven".