1363861049 has 2 divisors, whose sum is σ = 1363861050. Its totient is φ = 1363861048.

The previous prime is 1363861019. The next prime is 1363861127. The reversal of 1363861049 is 9401683631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 792985600 + 570875449 = 28160^2 + 23893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1363861049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1363860997 and 1363861015.

It is not a weakly prime, because it can be changed into another prime (1363861019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681930524 + 681930525.

It is an arithmetic number, because the mean of its divisors is an integer number (681930525).

Almost surely, 2^1363861049 is an apocalyptic number.

It is an amenable number.

1363861049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363861049 is an equidigital number, since it uses as much as digits as its factorization.

1363861049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1363861049 is about 36930.4894226979. The cubic root of 1363861049 is about 1108.9791358003.

The spelling of 1363861049 in words is "one billion, three hundred sixty-three million, eight hundred sixty-one thousand, forty-nine".