1056540103 has 2 divisors, whose sum is σ = 1056540104. Its totient is φ = 1056540102.

The previous prime is 1056540101. The next prime is 1056540139. The reversal of 1056540103 is 3010456501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1056540103 - 2¹ = 1056540101 is a prime.

It is a super-2 number, since 2×1056540103² = 2232553978494501218, which contains 22 as substring.

Together with 1056540101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056540101) 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, 528270051 + 528270052.

It is an arithmetic number, because the mean of its divisors is an integer number (528270052).

Almost surely, 2^1056540103 is an apocalyptic number.

1056540103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056540103 is an equidigital number, since it uses as much as digits as its factorization.

1056540103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1056540103 is about 32504.4628166657. The cubic root of 1056540103 is about 1018.5022562015.

Adding to 1056540103 its reverse (3010456501), we get a palindrome (4066996604).

The spelling of 1056540103 in words is "one billion, fifty-six million, five hundred forty thousand, one hundred three".