100513663 has 4 divisors (see below), whose sum is σ = 101643120. Its totient is φ = 99384208.

The previous prime is 100513649. The next prime is 100513669. The reversal of 100513663 is 366315001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100513663 - 2²¹ = 98416511 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 (100513669) 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, 564595 + ... + 564772.

It is an arithmetic number, because the mean of its divisors is an integer number (25410780).

Almost surely, 2^100513663 is an apocalyptic number.

100513663 is a deficient number, since it is larger than the sum of its proper divisors (1129457).

100513663 is an equidigital number, since it uses as much as digits as its factorization.

100513663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129456.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 100513663 is about 10025.6502532255. The cubic root of 100513663 is about 464.9522639554.

Adding to 100513663 its reverse (366315001), we get a palindrome (466828664).

The spelling of 100513663 in words is "one hundred million, five hundred thirteen thousand, six hundred sixty-three".