1133621389 has 2 divisors, whose sum is σ = 1133621390. Its totient is φ = 1133621388.

The previous prime is 1133621351. The next prime is 1133621393. The reversal of 1133621389 is 9831263311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1125065764 + 8555625 = 33542^2 + 2925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1133621389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133621689) 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, 566810694 + 566810695.

It is an arithmetic number, because the mean of its divisors is an integer number (566810695).

Almost surely, 2^1133621389 is an apocalyptic number.

It is an amenable number.

1133621389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133621389 is an equidigital number, since it uses as much as digits as its factorization.

1133621389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 1133621389 is about 33669.2944535522. The cubic root of 1133621389 is about 1042.6919257043.

The spelling of 1133621389 in words is "one billion, one hundred thirty-three million, six hundred twenty-one thousand, three hundred eighty-nine".