215413100 has 36 divisors (see below), whose sum is σ = 534226224. Its totient is φ = 73855680.

The previous prime is 215413097. The next prime is 215413109. The reversal of 215413100 is 1314512.

It is a super-2 number, since 2×215413100² = 92805607303220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215413109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153167 + ... + 154566.

Almost surely, 2^215413100 is an apocalyptic number.

215413100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215413100 is an abundant number, since it is smaller than the sum of its proper divisors (318813124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215413100 is a wasteful number, since it uses less digits than its factorization.

215413100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307754 (or 307747 counting only the distinct ones).

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

The square root of 215413100 is about 14676.9581317111. The cubic root of 215413100 is about 599.4560811435.

Adding to 215413100 its reverse (1314512), we get a palindrome (216727612).

The spelling of 215413100 in words is "two hundred fifteen million, four hundred thirteen thousand, one hundred".