1134121409 has 2 divisors, whose sum is σ = 1134121410. Its totient is φ = 1134121408.

The previous prime is 1134121399. The next prime is 1134121441. The reversal of 1134121409 is 9041214311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 867125809 + 266995600 = 29447^2 + 16340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1134121409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1134141409) 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, 567060704 + 567060705.

It is an arithmetic number, because the mean of its divisors is an integer number (567060705).

Almost surely, 2^1134121409 is an apocalyptic number.

It is an amenable number.

1134121409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1134121409 is an equidigital number, since it uses as much as digits as its factorization.

1134121409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1134121409 is about 33676.7190949475. The cubic root of 1134121409 is about 1042.8452073865.

The spelling of 1134121409 in words is "one billion, one hundred thirty-four million, one hundred twenty-one thousand, four hundred nine".