1800103147 has 4 divisors (see below), whose sum is σ = 1800765016. Its totient is φ = 1799441280.

The previous prime is 1800103127. The next prime is 1800103153. The reversal of 1800103147 is 7413010081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7413010081 = 29129 ⋅254489.

It is a cyclic number.

It is not a de Polignac number, because 1800103147 - 2¹¹ = 1800101099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1800103117) 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, 326838 + ... + 332299.

It is an arithmetic number, because the mean of its divisors is an integer number (450191254).

Almost surely, 2^1800103147 is an apocalyptic number.

1800103147 is a deficient number, since it is larger than the sum of its proper divisors (661869).

1800103147 is an equidigital number, since it uses as much as digits as its factorization.

1800103147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661868.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1800103147 is about 42427.6224528314. The cubic root of 1800103147 is about 1216.4636342594.

The spelling of 1800103147 in words is "one billion, eight hundred million, one hundred three thousand, one hundred forty-seven".