1138534273 has 2 divisors, whose sum is σ = 1138534274. Its totient is φ = 1138534272.

The previous prime is 1138534223. The next prime is 1138534307. The reversal of 1138534273 is 3724358311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 945685504 + 192848769 = 30752^2 + 13887^2 .

It is a cyclic number.

It is not a de Polignac number, because 1138534273 - 2⁹ = 1138533761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1138534223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569267136 + 569267137.

It is an arithmetic number, because the mean of its divisors is an integer number (569267137).

Almost surely, 2^1138534273 is an apocalyptic number.

It is an amenable number.

1138534273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138534273 is an equidigital number, since it uses as much as digits as its factorization.

1138534273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 1138534273 is about 33742.1735073483. The cubic root of 1138534273 is about 1044.1960263848.

The spelling of 1138534273 in words is "one billion, one hundred thirty-eight million, five hundred thirty-four thousand, two hundred seventy-three".