1055220243139 has 2 divisors, whose sum is σ = 1055220243140. Its totient is φ = 1055220243138.

The previous prime is 1055220243137. The next prime is 1055220243157. The reversal of 1055220243139 is 9313420225501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1055220243139 - 2¹ = 1055220243137 is a prime.

It is a super-2 number, since 2×1055220243139² (a number of 25 digits) contains 22 as substring.

Together with 1055220243137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1055220243098 and 1055220243107.

It is not a weakly prime, because it can be changed into another prime (1055220243137) 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, 527610121569 + 527610121570.

It is an arithmetic number, because the mean of its divisors is an integer number (527610121570).

Almost surely, 2^{1055220243139} is an apocalyptic number.

1055220243139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055220243139 is an equidigital number, since it uses as much as digits as its factorization.

1055220243139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 1055220243139 in words is "one trillion, fifty-five billion, two hundred twenty million, two hundred forty-three thousand, one hundred thirty-nine".