1363948129 has 2 divisors, whose sum is σ = 1363948130. Its totient is φ = 1363948128.

The previous prime is 1363948073. The next prime is 1363948141. The reversal of 1363948129 is 9218493631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1235171025 + 128777104 = 35145^2 + 11348^2 .

It is an emirp because it is prime and its reverse (9218493631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1363948129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1363948169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681974064 + 681974065.

It is an arithmetic number, because the mean of its divisors is an integer number (681974065).

Almost surely, 2^1363948129 is an apocalyptic number.

It is an amenable number.

1363948129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363948129 is an equidigital number, since it uses as much as digits as its factorization.

1363948129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 1363948129 is about 36931.6683755283. The cubic root of 1363948129 is about 1109.0027373855.

The spelling of 1363948129 in words is "one billion, three hundred sixty-three million, nine hundred forty-eight thousand, one hundred twenty-nine".