1238323873 has 2 divisors, whose sum is σ = 1238323874. Its totient is φ = 1238323872.

The previous prime is 1238323859. The next prime is 1238323903. The reversal of 1238323873 is 3783238321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 759939489 + 478384384 = 27567^2 + 21872^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238323873 - 2¹³ = 1238315681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1238303873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619161936 + 619161937.

It is an arithmetic number, because the mean of its divisors is an integer number (619161937).

Almost surely, 2^1238323873 is an apocalyptic number.

It is an amenable number.

1238323873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238323873 is an equidigital number, since it uses as much as digits as its factorization.

1238323873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 1238323873 is about 35189.8262712392. The cubic root of 1238323873 is about 1073.8527867584.

The spelling of 1238323873 in words is "one billion, two hundred thirty-eight million, three hundred twenty-three thousand, eight hundred seventy-three".