1006138103 has 4 divisors (see below), whose sum is σ = 1059092760. Its totient is φ = 953183448.

The previous prime is 1006138099. The next prime is 1006138109. The reversal of 1006138103 is 3018316001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3018316001 = 8287 ⋅364223.

It is a cyclic number.

It is not a de Polignac number, because 1006138103 - 2² = 1006138099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006138109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26477300 + ... + 26477337.

It is an arithmetic number, because the mean of its divisors is an integer number (264773190).

Almost surely, 2^1006138103 is an apocalyptic number.

1006138103 is a deficient number, since it is larger than the sum of its proper divisors (52954657).

1006138103 is an equidigital number, since it uses as much as digits as its factorization.

1006138103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52954656.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1006138103 is about 31719.6800582856. The cubic root of 1006138103 is about 1002.0418622941.

The spelling of 1006138103 in words is "one billion, six million, one hundred thirty-eight thousand, one hundred three".