215130104 has 32 divisors (see below), whose sum is σ = 488112480. Its totient is φ = 86774784.

The previous prime is 215130077. The next prime is 215130119. The reversal of 215130104 is 401031512.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112037 + ... + 113940.

It is an arithmetic number, because the mean of its divisors is an integer number (15253515).

Almost surely, 2^215130104 is an apocalyptic number.

It is an amenable number.

215130104 is an abundant number, since it is smaller than the sum of its proper divisors (272982376).

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

215130104 is a wasteful number, since it uses less digits than its factorization.

215130104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226007 (or 226003 counting only the distinct ones).

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

The square root of 215130104 is about 14667.3141372236. The cubic root of 215130104 is about 599.1934570406.

Adding to 215130104 its reverse (401031512), we get a palindrome (616161616).

The spelling of 215130104 in words is "two hundred fifteen million, one hundred thirty thousand, one hundred four".