491533103 has 2 divisors, whose sum is σ = 491533104. Its totient is φ = 491533102.

The previous prime is 491533099. The next prime is 491533127. The reversal of 491533103 is 301335194.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 491533103 - 2² = 491533099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (491533153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245766551 + 245766552.

It is an arithmetic number, because the mean of its divisors is an integer number (245766552).

Almost surely, 2^491533103 is an apocalyptic number.

491533103 is a deficient number, since it is larger than the sum of its proper divisors (1).

491533103 is an equidigital number, since it uses as much as digits as its factorization.

491533103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 491533103 is about 22170.5458435285. The cubic root of 491533103 is about 789.1948764788.

Adding to 491533103 its reverse (301335194), we get a palindrome (792868297).

The spelling of 491533103 in words is "four hundred ninety-one million, five hundred thirty-three thousand, one hundred three".