1238851963 has 2 divisors, whose sum is σ = 1238851964. Its totient is φ = 1238851962.

The previous prime is 1238851937. The next prime is 1238851979. The reversal of 1238851963 is 3691588321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1238851963 - 2⁹ = 1238851451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1238851903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619425981 + 619425982.

It is an arithmetic number, because the mean of its divisors is an integer number (619425982).

Almost surely, 2^1238851963 is an apocalyptic number.

1238851963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238851963 is an equidigital number, since it uses as much as digits as its factorization.

1238851963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 46.

The square root of 1238851963 is about 35197.3289185415. The cubic root of 1238851963 is about 1074.0054151988.

The spelling of 1238851963 in words is "one billion, two hundred thirty-eight million, eight hundred fifty-one thousand, nine hundred sixty-three".