1380241 has 2 divisors, whose sum is σ = 1380242. Its totient is φ = 1380240.

The previous prime is 1380233. The next prime is 1380251. The reversal of 1380241 is 1420831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1134225 + 246016 = 1065^2 + 496^2 .

It is an emirp because it is prime and its reverse (1420831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1380241 - 2³ = 1380233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1380221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690120 + 690121.

It is an arithmetic number, because the mean of its divisors is an integer number (690121).

2^1380241 is an apocalyptic number.

It is an amenable number.

1380241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380241 is an equidigital number, since it uses as much as digits as its factorization.

1380241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1380241 is about 1174.8365843810. The cubic root of 1380241 is about 111.3401087904.

The spelling of 1380241 in words is "one million, three hundred eighty thousand, two hundred forty-one".