1238268953 has 2 divisors, whose sum is σ = 1238268954. Its totient is φ = 1238268952.

The previous prime is 1238268907. The next prime is 1238269061. The reversal of 1238268953 is 3598628321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 903122704 + 335146249 = 30052^2 + 18307^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238268953 - 2¹⁴ = 1238252569 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1238268898 and 1238268907.

It is not a weakly prime, because it can be changed into another prime (1238268553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619134476 + 619134477.

It is an arithmetic number, because the mean of its divisors is an integer number (619134477).

Almost surely, 2^1238268953 is an apocalyptic number.

It is an amenable number.

1238268953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238268953 is an equidigital number, since it uses as much as digits as its factorization.

1238268953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 1238268953 is about 35189.0459234120. The cubic root of 1238268953 is about 1073.8369113028.

The spelling of 1238268953 in words is "one billion, two hundred thirty-eight million, two hundred sixty-eight thousand, nine hundred fifty-three".