1013503493 has 2 divisors, whose sum is σ = 1013503494. Its totient is φ = 1013503492.

The previous prime is 1013503459. The next prime is 1013503541. The reversal of 1013503493 is 3943053101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 610979524 + 402523969 = 24718^2 + 20063^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013503493 - 2⁸ = 1013503237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013503693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506751746 + 506751747.

It is an arithmetic number, because the mean of its divisors is an integer number (506751747).

Almost surely, 2^1013503493 is an apocalyptic number.

It is an amenable number.

1013503493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013503493 is an equidigital number, since it uses as much as digits as its factorization.

1013503493 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 1013503493 is about 31835.5696195309. The cubic root of 1013503493 is about 1004.4810544910.

Adding to 1013503493 its reverse (3943053101), we get a palindrome (4956556594).

The spelling of 1013503493 in words is "one billion, thirteen million, five hundred three thousand, four hundred ninety-three".