100216513 has 4 divisors (see below), whose sum is σ = 106111620. Its totient is φ = 94321408.

The previous prime is 100216511. The next prime is 100216561. The reversal of 100216513 is 315612001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315612001 = 15413 ⋅20477.

It can be written as a sum of positive squares in 2 ways, for example, as 41049649 + 59166864 = 6407^2 + 7692^2 .

It is a cyclic number.

It is not a de Polignac number, because 100216513 - 2¹ = 100216511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100216511) 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, 2947528 + ... + 2947561.

It is an arithmetic number, because the mean of its divisors is an integer number (26527905).

Almost surely, 2^100216513 is an apocalyptic number.

It is an amenable number.

100216513 is a deficient number, since it is larger than the sum of its proper divisors (5895107).

100216513 is an equidigital number, since it uses as much as digits as its factorization.

100216513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895106.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 100216513 is about 10010.8197966001. The cubic root of 100216513 is about 464.4936299951.

Adding to 100216513 its reverse (315612001), we get a palindrome (415828514).

The spelling of 100216513 in words is "one hundred million, two hundred sixteen thousand, five hundred thirteen".