1386120049 has 2 divisors, whose sum is σ = 1386120050. Its totient is φ = 1386120048.

The previous prime is 1386120013. The next prime is 1386120067. The reversal of 1386120049 is 9400216831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 951105600 + 435014449 = 30840^2 + 20857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1386120049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1386119996 and 1386120023.

It is not a weakly prime, because it can be changed into another prime (1386121049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693060024 + 693060025.

It is an arithmetic number, because the mean of its divisors is an integer number (693060025).

Almost surely, 2^1386120049 is an apocalyptic number.

It is an amenable number.

1386120049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386120049 is an equidigital number, since it uses as much as digits as its factorization.

1386120049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1386120049 is about 37230.6332070783. The cubic root of 1386120049 is about 1114.9796691715.

The spelling of 1386120049 in words is "one billion, three hundred eighty-six million, one hundred twenty thousand, forty-nine".