1381458241 has 2 divisors, whose sum is σ = 1381458242. Its totient is φ = 1381458240.

The previous prime is 1381458209. The next prime is 1381458257. The reversal of 1381458241 is 1428541831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1267075216 + 114383025 = 35596^2 + 10695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1381458241 - 2⁵ = 1381458209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1381458241.

It is not a weakly prime, because it can be changed into another prime (1381458271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690729120 + 690729121.

It is an arithmetic number, because the mean of its divisors is an integer number (690729121).

Almost surely, 2^1381458241 is an apocalyptic number.

It is an amenable number.

1381458241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381458241 is an equidigital number, since it uses as much as digits as its factorization.

1381458241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 37.

The square root of 1381458241 is about 37167.9733238174. The cubic root of 1381458241 is about 1113.7282962781.

The spelling of 1381458241 in words is "one billion, three hundred eighty-one million, four hundred fifty-eight thousand, two hundred forty-one".