1363441949 has 2 divisors, whose sum is σ = 1363441950. Its totient is φ = 1363441948.

The previous prime is 1363441903. The next prime is 1363441993. The reversal of 1363441949 is 9491443631.

It is an a-pointer prime, because the next prime (1363441993) can be obtained adding 1363441949 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 804119449 + 559322500 = 28357^2 + 23650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1363441949 - 2⁸ = 1363441693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1363441049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681720974 + 681720975.

It is an arithmetic number, because the mean of its divisors is an integer number (681720975).

Almost surely, 2^1363441949 is an apocalyptic number.

It is an amenable number.

1363441949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363441949 is an equidigital number, since it uses as much as digits as its factorization.

1363441949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 44.

The square root of 1363441949 is about 36924.8148133474. The cubic root of 1363441949 is about 1108.8655316638.

The spelling of 1363441949 in words is "one billion, three hundred sixty-three million, four hundred forty-one thousand, nine hundred forty-nine".