1238268859 has 2 divisors, whose sum is σ = 1238268860. Its totient is φ = 1238268858.

The previous prime is 1238268833. The next prime is 1238268901. The reversal of 1238268859 is 9588628321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1238268859 - 2¹⁵ = 1238236091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1238268809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619134429 + 619134430.

It is an arithmetic number, because the mean of its divisors is an integer number (619134430).

Almost surely, 2^1238268859 is an apocalyptic number.

1238268859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238268859 is an equidigital number, since it uses as much as digits as its factorization.

1238268859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 52.

The square root of 1238268859 is about 35189.0445877691. The cubic root of 1238268859 is about 1073.8368841303.

The spelling of 1238268859 in words is "one billion, two hundred thirty-eight million, two hundred sixty-eight thousand, eight hundred fifty-nine".