1138217459 has 2 divisors, whose sum is σ = 1138217460. Its totient is φ = 1138217458.

The previous prime is 1138217419. The next prime is 1138217489. The reversal of 1138217459 is 9547128311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1138217459 - 2²⁰ = 1137168883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1138217419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569108729 + 569108730.

It is an arithmetic number, because the mean of its divisors is an integer number (569108730).

Almost surely, 2^1138217459 is an apocalyptic number.

1138217459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138217459 is an equidigital number, since it uses as much as digits as its factorization.

1138217459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 1138217459 is about 33737.4785513085. The cubic root of 1138217459 is about 1044.0991630705.

The spelling of 1138217459 in words is "one billion, one hundred thirty-eight million, two hundred seventeen thousand, four hundred fifty-nine".