1381317928147 has 2 divisors, whose sum is σ = 1381317928148. Its totient is φ = 1381317928146.

The previous prime is 1381317928117. The next prime is 1381317928157. The reversal of 1381317928147 is 7418297131831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1381317928147 - 2⁷ = 1381317928019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1381317928117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690658964073 + 690658964074.

It is an arithmetic number, because the mean of its divisors is an integer number (690658964074).

Almost surely, 2^{1381317928147} is an apocalyptic number.

1381317928147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381317928147 is an equidigital number, since it uses as much as digits as its factorization.

1381317928147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 55.

The spelling of 1381317928147 in words is "one trillion, three hundred eighty-one billion, three hundred seventeen million, nine hundred twenty-eight thousand, one hundred forty-seven".