100503047 has 2 divisors, whose sum is σ = 100503048. Its totient is φ = 100503046.

The previous prime is 100503043. The next prime is 100503097. The reversal of 100503047 is 740305001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100503047 - 2² = 100503043 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100503043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50251523 + 50251524.

It is an arithmetic number, because the mean of its divisors is an integer number (50251524).

Almost surely, 2^100503047 is an apocalyptic number.

100503047 is a deficient number, since it is larger than the sum of its proper divisors (1).

100503047 is an equidigital number, since it uses as much as digits as its factorization.

100503047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 100503047 is about 10025.1207972772. The cubic root of 100503047 is about 464.9358943500.

Adding to 100503047 its reverse (740305001), we get a palindrome (840808048).

The spelling of 100503047 in words is "one hundred million, five hundred three thousand, forty-seven".