1238968453 has 2 divisors, whose sum is σ = 1238968454. Its totient is φ = 1238968452.

The previous prime is 1238968441. The next prime is 1238968469. The reversal of 1238968453 is 3548698321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 869483169 + 369485284 = 29487^2 + 19222^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238968453 - 2²⁹ = 702097541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1238968397 and 1238968406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1238968403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619484226 + 619484227.

It is an arithmetic number, because the mean of its divisors is an integer number (619484227).

Almost surely, 2^1238968453 is an apocalyptic number.

It is an amenable number.

1238968453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238968453 is an equidigital number, since it uses as much as digits as its factorization.

1238968453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The square root of 1238968453 is about 35198.9836927148. The cubic root of 1238968453 is about 1074.0390772702.

The spelling of 1238968453 in words is "one billion, two hundred thirty-eight million, nine hundred sixty-eight thousand, four hundred fifty-three".