100215413 has 4 divisors (see below), whose sum is σ = 102546048. Its totient is φ = 97884780.

The previous prime is 100215403. The next prime is 100215431. The reversal of 100215413 is 314512001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100215413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100215391 and 100215400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100215403) 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, 1165253 + ... + 1165338.

It is an arithmetic number, because the mean of its divisors is an integer number (25636512).

Almost surely, 2^100215413 is an apocalyptic number.

It is an amenable number.

100215413 is a deficient number, since it is larger than the sum of its proper divisors (2330635).

100215413 is an equidigital number, since it uses as much as digits as its factorization.

100215413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330634.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 100215413 is about 10010.7648558939. The cubic root of 100215413 is about 464.4919305251.

Adding to 100215413 its reverse (314512001), we get a palindrome (414727414).

The spelling of 100215413 in words is "one hundred million, two hundred fifteen thousand, four hundred thirteen".