1381456003 has 2 divisors, whose sum is σ = 1381456004. Its totient is φ = 1381456002.

The previous prime is 1381455997. The next prime is 1381456127. The reversal of 1381456003 is 3006541831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1381456003 - 2²⁵ = 1347901571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1381456303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690728001 + 690728002.

It is an arithmetic number, because the mean of its divisors is an integer number (690728002).

Almost surely, 2^1381456003 is an apocalyptic number.

1381456003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381456003 is an equidigital number, since it uses as much as digits as its factorization.

1381456003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1381456003 is about 37167.9432172403. The cubic root of 1381456003 is about 1113.7276948544.

Adding to 1381456003 its reverse (3006541831), we get a palindrome (4387997834).

The spelling of 1381456003 in words is "one billion, three hundred eighty-one million, four hundred fifty-six thousand, three".