100538215 has 16 divisors (see below), whose sum is σ = 131378400. Its totient is φ = 73567872.

The previous prime is 100538203. The next prime is 100538233. The reversal of 100538215 is 512835001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100538215 - 2¹¹ = 100536167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100538215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15492 + ... + 21001.

It is an arithmetic number, because the mean of its divisors is an integer number (8211150).

Almost surely, 2^100538215 is an apocalyptic number.

100538215 is a deficient number, since it is larger than the sum of its proper divisors (30840185).

100538215 is a wasteful number, since it uses less digits than its factorization.

100538215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36546.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 100538215 is about 10026.8746376924. The cubic root of 100538215 is about 464.9901181081.

The spelling of 100538215 in words is "one hundred million, five hundred thirty-eight thousand, two hundred fifteen".