1386149 has 2 divisors, whose sum is σ = 1386150. Its totient is φ = 1386148.

The previous prime is 1386139. The next prime is 1386167. The reversal of 1386149 is 9416831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1014049 + 372100 = 1007^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1386149 - 2⁸ = 1385893 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1386139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693074 + 693075.

It is an arithmetic number, because the mean of its divisors is an integer number (693075).

2^1386149 is an apocalyptic number.

It is an amenable number.

1386149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386149 is an equidigital number, since it uses as much as digits as its factorization.

1386149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 1386149 is about 1177.3482917132. The cubic root of 1386149 is about 111.4987431739.

The spelling of 1386149 in words is "one million, three hundred eighty-six thousand, one hundred forty-nine".