1381943027 has 2 divisors, whose sum is σ = 1381943028. Its totient is φ = 1381943026.

The previous prime is 1381943011. The next prime is 1381943033. The reversal of 1381943027 is 7203491831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1381943027 - 2⁴ = 1381943011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1381943047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690971513 + 690971514.

It is an arithmetic number, because the mean of its divisors is an integer number (690971514).

Almost surely, 2^1381943027 is an apocalyptic number.

1381943027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381943027 is an equidigital number, since it uses as much as digits as its factorization.

1381943027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1381943027 is about 37174.4943072532. The cubic root of 1381943027 is about 1113.8585588092.

The spelling of 1381943027 in words is "one billion, three hundred eighty-one million, nine hundred forty-three thousand, twenty-seven".