2145103386827 has 2 divisors, whose sum is σ = 2145103386828. Its totient is φ = 2145103386826.

The previous prime is 2145103386799. The next prime is 2145103386851. The reversal of 2145103386827 is 7286833015412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2145103386827 - 2¹² = 2145103382731 is a prime.

It is not a weakly prime, because it can be changed into another prime (2145103386527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072551693413 + 1072551693414.

It is an arithmetic number, because the mean of its divisors is an integer number (1072551693414).

Almost surely, 2^{2145103386827} is an apocalyptic number.

2145103386827 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145103386827 is an equidigital number, since it uses as much as digits as its factorization.

2145103386827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 2145103386827 in words is "two trillion, one hundred forty-five billion, one hundred three million, three hundred eighty-six thousand, eight hundred twenty-seven".